AIPMT Physics Question Papers 2015 - All candidates can download here Physics sample papers for examination to All India Pre-Medical Pre-Dental Entrance Test - 2015 for admission to MBBS and BDS programmes for the academic session 2015-16. The entrance examination will be held on May 3, 2015.
We have presented question papers in different set's. All these question will help you for a better exam preparation.
The test is of 3 hours duration and Test Booklet contains 180 questions. Each question carries 4 marks. For each correct response, the candidate will get 4 marks. For each incorrect response, one mark will be deducted from the total scores. The maximum marks are 720.
If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is 1 × 103 kg/m3and g = 10 m/s2, then the volume elasticity in N/m2 will be
(1) 108 (2) 2 × 108
(3) 109 (4) 2 × 109
The shapes of PCl4+, PCl4– and AsCl5 are respectively
(1) Square planar, tetrahedral, see-saw
(2) Tetrahedral, see-saw, trigonal bipyramidal
(3) Tetrahedral, square planar and pentagonal bipyramidal
(4) Trigonal bipyramidal, tetrahedral and square pyramidal
A metal M readily forms its sulphate MSO4 which is water soluble. It forms oxide MO which becomes inert on heating. It forms insoluble hydroxide which is soluble in NaOH. The metal M is
(1) Mg (2) Ba
(3) Ca (4) Be
Addition of Br2 on trans-2-butene gives :
(1) A racemic mixture of 2,3-dibromo butane
(2) Meso form of 2,3-dibromobutane
(3) Dextro form of 2,3-dibromobutane
(4) Laevo form of 2,3-dibromobutane
Schwann cells and node of Ranvier are found in
(1) Nervous tissue (2) Osteoblast
(3) Chondrioblast (4) Gland cells
The alkaline medium required for the action of enzymes in the small intestine is provided by
(1) Pancreatic juice (2) Intestinal juice
(3) Ptyalin (4) Bile
Anadromous fishes move from
(1) River to sea for breeding
(2) Esturies to sea for breeding
(3) Sea to fresh water for breeding
(4) Fresh water to sea for breeding
The correct match for kind of respiration is
Example Respiration
A. Earthworm 1. Pulmonary
B. Human 2. Branchial
C. Prawn 3. Tracheal
D. Insects 4. Cutaneous
A B C D
(1) 1 2 3 4
(2) 4 2 1 3
(3) 4 1 2 3
(4) 3 2 4 1
How many of the following are appropriate for mass-flow of water absorption ?
(A) Transpiration pull is responsible for absorption of ions
(B) Large amount of ions are also absorbed along with the absorption of water
(C) As suction pressure increases, absorption of water increases and along with water, absorption of ion also increases
(1) 1 (2) 3 (3) 2 (4) zero
Which of the following statements is/are true ?
I. The apoplastic movement of water occurs exclusively through the cell wall without crossing any membranes.
II. Solutes present in a cell (or in any solution) increase the free energy of water or water potential.
III. The symplastic movement occurs from cell to cell through the plasmodesmata.
IV. Membrane permeability depends on the membrane composition, as well the chemical nature of the solute.
(1) I and II only (2) II and IV only
(3) I, III and IV only (4) I, II and IV only
Identify the incorrect statement with respect to Calvin cycle
(1) The carboxylation of RuBP is catalysed by Rubisco
(2) The first stable intermediate compound formed is phosphoglycerate
(3) 18 molecules of ATP are synthesised during carbon fixation
(4) NADPH + H+ produced in light reaction is used to reduce diphosphoglycerate
Few statements regarding plant tissue are given below. Which of the following are true
A. Pits and plasmodesmata are present in parenchyma and collenchyma
B. Lignified wall is present in collenchyma and sclerenchyma
C. parenchyma is commonly present in storage organ
D. Simple tissue are present only in cortex region
(1) A, B & C (2) A & C
(3) A, C & D (4) A, B & D
How many of them are primary meristem : cork Cambium, conjuctive tissue, root apical meristem, shoot apical meristem, wound cambium, Parenchyma, Mature endosperm, Interfasicular Cambium, inter calary meristem
(1) Four (2) Three
(3) Two (4) Five
Arrange the following in ascending order and select the correct option
(i) Kingdom (ii) Order
(iii) Division (iv) Species
(v) Genus (vi) Family
(vii) Class
(1) (i) (iii) (vii) (ii) (vi) (v) (iv)
(2) (iv) (v) (vi) (ii) (vii) (iii) (i)
(3) (iv) (v) (vi) (ii) (iii) (vii) (i)
(4) (i) (vii) (iii) (ii) (vi) (v) (iv)
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products ?
(1) Television (2) Refrigerator
(3) Tube light (4) Cooking gas
Who is the author of 'Ashtadhyayi' ?
(1) Sumitranandan Pant (2) Raj Anand
(3) Panini (4) Gitta Piramal
What is the wavelength of visible spectrum ?
(1) 8500 - 9800 angstrom
(2) 7800 - 8000 angstrom
(3) 3900 - 7600 angstrom
(4) 1300 - 3000 angstrom
The famous Dilwara Temples are situated in -
(1) Uttar Pradesh (2) Rajasthan
(3) Maharashtra (4) Madhya Pradesh
The work-function of a substance is 4eV The longest wavelength of light that can use photo electron emission from this substance is approximately
(1) 540 nm
(2) 400 nm
(3) 310 nm
(4) 220 nm
Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror and parallel to the second is reflected from the second mirror parallel to the first mirror. The angle between the two mirrors is
(1) 30º
(2) 45º
(3) 60º
(4) 75º
The reason for shining of air bubble in water is
(1) Diffraction of light
(2) Dispersion of light
(3) Scattering of light
(4) Total internal reflection of light
A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2 cm. If this telescope is used to see a 50 meter tall building at a distance of 2 km, what is the height of the image of the building formed by the objective lens
(1) 5 cm
(2) 10 cm
(3) 1 cm
(4) 2 cm
If a person obtains transformants, by inserting a recombinant DNA within the coding sequence of β-galactosidase, he will separate out recombinants from non-recombinants by observing
(1) non-recombinant colonies do not produce any colour, whereas recombinants form blue coloured colonies
(2) recombinant colonies do not produce any colour, whereas non-recombinants form blue coloured colonies
(3) recombinants and non-recombinants both produce blue coloured colonies
(4) no colonies are formed due to insertional inactivation
A stream of electrons is projected horizontally to the right. A straight conductor carrying current is supported parallel to the electron stream and above it. If the current in the conductor is from left to right then what will be the effect on electron stream?
(1) The electron stream will be speeded up towards the right
(2) The electron stream will be retarded
(3) The electron stream will be pulled upwards
(4) The electron stream will be pulled downwards
When a system goes from state A to state B, is supplied with 400 J of heat and it does 100 J of work. For this translation what will be the change in internal energy of the system ?
(1) 250 J
(2) 300 J
(3) 350 J
(4) 150 J
0.3 g of a metal gave 67.2 mL hydrogen gas on reaction with dilute acid at S.T.P. The equivalent mass of the metal is
(1) 25.0
(2) 50.0
(3) 100.0
(4) 67.2
A compound consisting of sodium, nitrogen and oxygen has 33.33% sodium by mass. If compound has only one sodium atom, find the possible oxidation state of nitrogen.
(1) – 3
(2) + 3
(3) – 2
(4) + 5
Which one of the following statement is incorrect ?
(1) Greater the lowering of vapour pressure, greater is the boiling point of the solution
(2) Greater the lowering of vapour pressure, greater is the freezing point of the solution
(3) At the freezing point, the solute and the solvent have same vapour pressure
(4) The units of molal depression constant are Kg molal–1
A compound Co(en)2(NO2)2Cl has been prepared in a number of isomeric form one undergoes reaction with AgNO3 and gives white ppt. Which is soluble in NH3 and also optically inactive is
(1) Cis [Co(en)2 (NO2)2]Cl
(2) Trans [Co(en)2 (NO2)Cl]NO2
(3) Trans [Co(en)2 (NO2)2]Cl
(4) (2) & (3) both
When copper sulphate solution is treated with potassium iodide and excess of hypo solution is added in resulting solution, a white precipitate is formed. The white ppt. is due to :
(1) Na2S4O6
(2) CuI2
(3) CuI
(4) NaI
Select the false statement
(1) Leghaemoglobin is present in the cytoplasm of infected nodule cells
(2) The host plant (legume) produce globin part while bacteria (Rhizobium) produces haem part of leghaemoglobin
(3) In legume crops of tropical origin the transported amide is asparagines while in temperate origin it is ureides
(4) Nitrogen binding site of nitrogenase enzyme is Mo-Fe protein
Which of the following is the correct group of vestigial organs in man ?
(1) Nictitating membrane, ear muscles, eyelids and coccyx
(2) Appendix, coccyx, ear muscles and elbow joint
(3) Wisdom tooth, coccyx, body hair and ear muscles
(4) Wisdom tooth, body hair, nictitating membrane and vermiform appendix
Two plane mirrors A & B are parallel to each other and spaced 20 cm apart. An object is kept in between them 15 cm from A. Out of the following at which point is an image not formed in mirror A (distance measured from the mirror A)
(1) 15 cm
(2) 25 cm
(3) 45 cm
(4) 55 cm
What will be the height of the image when an object of 2 mm is placed at a distance 20 cm infront of the axis of a convex mirror of radius of curvature 40 cm ?
(1) 20 mm
(2) 10 mm
(3) 6 mm
(4) 1 mm
Two thin lens have a combined power of 10 D in contact. When separated by 20 cm their equivalent power is 6.25 D. Find their individual powers in dioptres
(1) 3.5 and 6.5
(2) 5 and 5
(3) 7.5 and 2.5
(4) 9 and 1
250 gm of water and equal volume of alcohol of mass 200 gm are replaced successively in the same calorimeter and cool from 60ºC to 55ºC in 130 sec and 67 sec respectively. If the water equivalent of calorimeter is 10 gm. The specific heat of alcohol in cal/gmºC is
(1) 1.30
(2) 0.67
(3) 0.62
(4) None of these
Anhydrous ferric chloride is prepared by
(1) Dissolving ferric hydroxide in dilute HCl.
(2) Dissolving ferric hydroxide in conc. HCl.
(3) By passing dry Cl2 gas over heated scrap iron
(4) By heating FeCl3 . 6H2O
If NaOH is added to an aqueous solution of Zn+2, a white precipitate appears and on adding excess of NaOH the precipitate dissolves. In the solution Zn exists in the
(1) Cationic part
(2) Anionic part
(3) in both the parts
(4) there is no Zn in solution
0.1 M NaCl and 0.05 M BaCl2 solutions are separated by a semi-permeable membrane in a container. For this system, choose the correct answer
(1) There is no movement of any solution across the membrane
(2) Water flows from BaCl2 solution towards NaCl solution
(3) Water flows from NaCl solution towards BaCl2 solution
(4) Osmotic pressure of 0.1 M NaCl is lower than the osmotic pressure of 0.05 M BaCl2 (assume complete dissociation)
A solution containing 0.1 g of a non-volatile organic substance P (molecular mass 100) in 100 g of benzene raises the boiling point of benzene by 0.2°C, while a solution containing 0.1 g of another non- olatile substance Q in the same amount of benzene raises the boiling point of benzene by 0.4°C. What is the ratio of molecular masses of P and Q ?
(1) 1 : 2
(2) 2 : 1
(3) 1 : 4
(4) 4 : 1
If the diploid number of an angiospermic plant is 24, the number of chromosomes in the pollen grain, endosperm and integument will be
(1) 12, 36, 12
(2) 12, 24, 36
(3) 12, 12, 36
(4) 12, 36, 24
Match the items in column-I (vitamins) with those in column-II (deficiency disease)
(i) K (a) Beri-beri
(ii) D (b) Haemorrhagic disease of new born
(iii) B1 (c) Night blindness
(iv) A (d) Rickets
Which one of the following is the correct matching of all the four vitamins ?
(1) i-c, ii-b, iii-d, iv-a
(2) i-a, ii-b, iii-d, iv-c
(3) i-b, ii-d, iii-a, iv-c
(4) i-c, ii-d, iii-a, iv-b
Study the following statements and select the correct option
A. Tapetum nourishes the developing pollen grains
B. Hilum represents the junction between ovule and funicule
C. In aquatic plants such as water hyacinth and water lily, pollination is by water
D. Scutellum is cotyledon of grass embryo
(1) A and B are correct but C and D are incorrect
(2) A, B and D are correct but C is incorrect
(3) B, C and D are correct but A is incorrect
(4) A and D are correct but B and C are incorrect
Assertion: A convex lens behaves as a concave lens when placed in a medium of refractive index greater than the refractive index of its material.
Reason: Light in that case will travel through the convex lens from denser to rarer medium. It will bend away from normal, i.e., the convex lens would diverge the rays and behave as concave.
(1) A
(2) B
(3) C
(4) D
Assertion : Chordates have a oxygen carrying pigment called haemoglobin. It is always present in red blood corpuscles.
Reason : Non-chordates have either no haemoglobin or if it is present it is present in plasma. Non-chordates require very little oxygen as compared to chordates for their body functions.
(1) A
(2) B
(3) C
(4) D
Assertion : In chordates a portal system is a complex of veins which begins in capillaries and ends in capillaries before the blood which courses through it is returned to the heart.
Reason : All vertebrates have a hepatic portal system.
(1) A
(2) B
(3) C
(4) D
(1) 112 kms–1 (2) 11.2 kms–1 (3) 1.12 kms–1 (4) 3.7 kms–1
The periodic time of a body executing SHM is 2s. After how much interval from t = 0, will its displacement be half of its amplitude ?
(1) 1/5 s (2) 1/6 s (3) 1/10 s (4) 1/8 s
An advertisement claims that a certain 1200 kg car can accelerate from rest to a speed of 25 ms–1 in a time of 8 s. What average power must the motor produce to cause this acceleration ? (ignore friction)
(1) 45 kW (2) 45.9 kW (3) 46.9 kW (4) None of these
A projectile is projected at an angle of 15° to the horizontal with some speed v. If another projectile is projected with the same speed, then it must be projected at an angle with the horizontal so as to have the same range
(1) 12.5º (2) 75º (3) 65º (4) It is never possible
A beam of light composed of red and green rays is incident obliquely at a point on the face of rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from
(1) Two points propagating in two different non parallel direction
(2) Two points propagating in two parallel directions
(3) One point propagating in two different directions
(4) One point propagating in the same directions
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 × 10–15 m is -
(1) 80 volt (2) 8 × 106 volt (3) 9 volt (4) 9 × 105 volt
2 mole of N2H4 loses 16 mole of electron is being converted to a new species X. Assuming that all of the N appears in the new species. What is the oxidation state of 'N' in X ?
(1) –1 (2) –2 (3) +2 (4) +4
The addition of HBr to alkene in the presence of a peroxide is :
(1) a free-radical addition via an alkyl radical intermediate
(2) an electrophilic addition via an alkyl cation intermediate
(3) a free-radical addition involving a β-bromo alkyl radical intermediate
(4) a nucleophilic addition via an alkyl anion intermediate
In an experiment, 4gm of M2Ox oxide was reduced to 2.8 gm of the metal. If the atomic mass of the metal is 56 g mol–1, the number of oxygen atom in the oxide is
(1) 1 (2) 2 (3) 3 (4) 4
If 1, 1, 2, 2-tetrabromoethane is heated with zinc (1 mole) in ethanol, the major product will be :
(1) 1, 1, 2-tribromoethene
(2) cis-1, 2-dibromoethene
(3) trans-1, 2-dibromoethene
(4) ethyne
Increase in circumference in woody plant is due to
(A) Vascular cambium
(B) Cork cambium
(C) Pro cambium
Codes :-
(1) A is correct B & C are wrong
(2) B is correct A & C are wrong
(3) A & B are correct C is wrong
(4) A & C is correct B is wrong
Male and Female gametophyte attached to the parent sporophyte where zygote developed to embryo inside female gametophyte, leads to formation of seed in
(1) Pteridophyte
(2) Gymnosperm
(3) Heterosporus pteridophyte
(4) Homosporous gymnosperm
Suppose a person wears convex glasses for proper vision. Where you think the image of the object is formed in his eyes when he is not using the glasses
(1) On the yellow spot
(2) Behind the retina
(3) In front of the retina
(4) On the blind spot
Which one of the following pairs of the kind of cells and their secretion are correctly matched ?
(1) Oxyntic cells — A secretion with pH between 2.0 and 3.0
(2) Kupffer cells — A digestive enzyme that hydrolyses nucleic acids
(3) Sebaceous glands — A secretion that evaporates for cooling
(4) Alpha cells of Islets of Langerhans — Secretion that decreases blood sugar level
Consider of the following four statements (1-4) about certain desert animals such as kangaroo rat
A. They have dark colour and high rate of reproduction and excrete solid urine
B. They do not drink water, breath at slow rate to conserve water and have their body covered with thick hairs
C. They feed on dry seeds and do not require drinking water
D. They excrete very concentrated urine and do not use water to regulate body temperature
Which two of the above statements for such animals are true ?
(1) (A) and (B) (2) (C) and (D)
(3) (B) and (C) (4) (C) and (A)
Which of these statements is true ?
(1) Cold climates have greater amounts of biodiversity than warm climates
(2) Tropical regions of earth contain very few of the world's land species
(3) Coral reefs lend to be less biologically diverse than temperate deciduous forests
(4) Biodiversity tends to increase as you get closer to the equator
Which one of the following is the correct statement regarding the particular psychotropic drug specified ?
(1) Morphine leads to delusions and disturbed emotions
(2) Barbiturates cause relaxation and temporary euphoria
(3) Hashish causes after thought perceptions and hallucinations
(4) Opium stimulates nervous system and causes halluci-nations
Assertion: For the planets orbiting around the sun, angular speed, linear speed, K.E. changes with time, but angular momentum remains constant.
Reason: No torque is acting on the rotating planet. So its angular momentum is constant.
(1) A (2) B (3) C (4) D
Assertion: Young’s modulus for a perfectly plastic body is zero.
Reason: For a perfectly plastic body, restoring force is zero.
(1) A (2) B (3) C (4) D
Assertion: A needle placed carefully on the surface of water may float, whereas a ball of the same material will always sink.
Reason: The buoyancy of an object depends both on the material and shape of the object.
(1) A (2) B (3) C (4) D
One amongst the following takes the decision about the monetary Policy of India
(1) Finance Minister of India
(2) Reserve Bank of India
(3) Prime Minister of India
(4) International Monetary Fund
Which one among the following waves are called waves of heat energy?
(1) Radio waves (2) Microwaves
(3) Ultraviolet waves (4) Infrared waves
Agha Khan Cup is associated with which of the following games?
(1) Golf (2) Tennis
(3) Hockey (4) Badminton
Which of the following is not a product of bacterial fermentation ?
(1) Alcohol (2) Acetic acid
(3) Antibiotics (4) None of the above
There are two radioactive substances A and B. Decay constant of B is two times that of A. Initially both have equal number of nuclei. After n half lives of A, rate of disintegration of both are equal. The value of n is
(1) 1
(2) 2
(3) 4
(4) All of these
Assuming earth to be a sphere of uniform mass density, how much would a body weight half way down the centre of the earth, if it weighed 100 N on the surface ?
(1) 20 N
(2) 75 N
(3) 50 N
(4) 30 N
When 100 volts dc is supplied across a solenoid, a current of 1.0 amperes flows in it. When 100 volts ac is applied across the same coil, the current drops to 0.5 ampere. If the frequency of ac source is 50 Hz, then the impedance and inductance of the solenoid are
(1) 200 Ω and 0.55 henry
(2) 100 Ω and 0.86 henry
(3) 200 Ω and 1.0 henry
(4) 100 Ω and 0.93 henry
Two electric bulbs 40 W, 200 V and 100 W, 200 V are connected in series. Then the maximum voltage that can be applied across the combination, without fusing either bulb (in V) is
(1) 280
(2) 400
(3) 300
(4) 200
I. Concentrated solution of an alkali metal in liquid ammonia is bronze coloured and diamagnetic.
II. Increasing stability of the peroxide and superoxide of alkali metal down the group, is due to the stabilization of large anions by large cations through lattice energy effects.
III. In the vapour phase, BeCl2 tends to form a chloro-bridged dimmer.
IV. Beryllium hydroxide reacts with acid and alkali both to form Be(OH)2 and [Be(OH4)]–2 respectively.
(1) T T T T
(2) F F F F
(3) T F T F
(4) F T F T
Solution of sodium metals in liquid ammonia is strongly reducing due to the presence of
(1) Sodium hydride
(2) Sodium atoms
(3) Sodium amide
(4) Solvated electrons
How many mole of electrons are involved in the reduction of one mole of MnO4 ion in alkaline medium to MnO3 ?
(1) 2
(2) 1
(3) 3
(4) 4
Number of equivalents of HCl present in 100 mL of its solution whose pH is 4
(1) 10–4
(2) 10–3
(3) 10–2
(4) 10–5
On dissolving smaller (less than 3M) amount of sodium metal in liquid ammonia at low temperature, which one of the following does not occur ?
(1) Blue coloured solution is obtained
(2) Ammoniated Na+ ions are formed in the solution
(3) Liquid NH3 becomes good conductor of electricity
(4) Liquid ammonia remains diamagnetic
Two substances when separated out on the basis of their extent of adsorption, by one material, the phenomenon is called
(1) chromatography
(2) paper chromatography
(3) steam distillation
(4) sublimation
Which of the following decreases on going gradually from Be to Ba (in periodic table) ?
(1) Basic character of hydroxides
(2) Solubility of sulphates in water
(3) Solubility of hydroxides in water
(4) Strength of elements as reducing agent
The most important significance of vegetative propagation is that
(1) It enable rapid production of genetic variation
(2) It is means of producing a large population of genetically identical plant
(3) It ensure that offsprings are pest free
(4) It is a simple method
Degeration of tail in tadpole is example of ?
(1) Growth
(2) Degrowth
(3) Ageing
(4) Senesence
Petunia, datura, mullaithy, capsella, onion are belongs to
(1) Four family of angiosperm
(2) Five family of angiosperm
(3) Three family of angiosperm
(4) None of the above
Use the following statements for answering the Questions. +1 marks for each correct answer & – 1/3 marks for each incorrect answer.
(A) If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
(B) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(C) If Assertion is True but the Reason is False.
(D) If both Assertion and Reason are False.
Assertion : The time period of revolution of a satellite close to surface of earth is smaller than that revolving away from surface of earth.
Reason : The square of time period of revolution of a satellite is directly proportional to cube of its orbital radius.
(1) A (2) B (3) C (4) D
Assertion : The process of photoelectric emission is different to that of thermionic emission.
Reason : The process of thermionic emission is temperature dependent but photoelectric emission is independent of temperature.
(1) A (2) B (3) C (4) D
Assertion : In photoelectric effect on increasing the intensity of light, both the number of electrons emitted and kinetic energy of each of them gets increased but photoelectric current remains unchanged.
Reason : The photoelectric current depends on wavelength of light.
(1) A (2) B (3) C (4) D
The transfer ratio of a transistor is 50. The input resistance of the transistor when used in the common-emitter configuration is 1 KΩ. The peak value for an A.C. input voltage of 0.01 V of collector current is
(1) 100 μA
(2) 0.01 mA
(3) 0.25 mA
(4) 500 μA
A transistor is used as an amplifier in CB mode with a load resistance of 5 kΩ the current gain of amplifier is 0.98 and the input resistance is 70 Ω, the voltage gain and power gain respectively are
(1) 70, 68.6
(2) 80, 75.6
(3) 60, 66.6
(4) 90, 96.6
An expansion process on a diatomic ideal gas (Cv = 5/2 R), has a linear path between the initial and final coordinates on a pV diagram. The coordinates of the initial state are : the pressure is 300 kPa, the volume is 0.08 m3 and the temperature is 390 K. The final pressure is 90 kPa and the final temperature is 320 K. The change in the internal energy of the gas, in SI units, is closest to
(1) –11, 000
(2) –6500
(3) 11, 000
(4) zero
There is a black spot on a body. If the body is heated and carried in dark room then it glows more. This can be explained on the basis of
(1) Newton's law of cooling
(2) Wein's law
(3) Kirchoff's law
(4) Stefan's law
An organ pipe open at one end is vibrating in second overtone and is in resonance with another pipe open at both ends and vibrating in third harmonic. The ratio of length of two pipes is
(1) 3 : 8
(2) 8 : 3
(3) 1 : 2
(4) 4 : 1
A crystalline solid is made of X, Y and Z. Atoms of X are present in ccp lattice; Y occupies all the octahedral voids and Z occupies all the tetrahedral voids. If all atoms along with body are diagonally removed then formula of solid will be
(1) X5Y4Z8
(2) X8Y4Z5
(3) X2YZ2
(4) XYZ2
Select the correct statement
(1) Tropical rain forest are distributed in 14% of world land area
(2) India share 2.1% of global biodiversity
(3) Biodiversity hot spots cover less than 2% of world land
(4) Indian National forest policy suggested 33% forest cover over hills
Which one of the following scientist's name is correctly match with the theory put forth by him?
(1) Weismann – Theory of continuity of germplasm
(2) Pasteur – Inheritance of acquired characters
(3) De Vries – Natural selection
(4) Mendel – Theory of pangenesis
Decomposition of H2O2is a first order reaction. A 16 volume solution of H2O2 of half life 30 min is present at start. When will the solution become one volume ?
(1) After 120 min
(2) After 90 min
(3) After 60 min
(4) After 150 min
Which of the following would not be the effect of global warming ?
(1) Drastic decrease in productivity of C3 crops
(2) Temperate flora and fauna will survive well
(3) Disease like Dengue, Malaria will wide spread over the globe
(4) Submerging of costal areas and islands
Assertion & Reason Type Questions.
Use the following statements for answering the Questions. +1 marks for each correct answer & – 1/3 marks for each incorrect answer.
(A) If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
(B) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(C) If Assertion is True but the Reason is False.
(D) If both Assertion and Reason are False.
Assertion: The electromagnetic waves of shorter wavelength can travel longer distances on earth’surface than those of longer wavelengths.
Reason: Shorter the wavelength, the larger is the velocity of wave propagation.
(1) A (2) B (3) C (4) D
Assertion: Optical fibre communication has immunity to cross-talk.
Reason: Optical interference between fibres is zero.
(1) A (2) B (3) C (4) D
Assertion: For a perfectly black body, absorption coefficient and emission coefficient, each is one.
Reason: Perfect absorbers are perfect emitters.
(1) A (2) B (3) C (4) D
Assertion: Two thin blankets put together are warmer than a single blanket of double the thickness.
Reason: Thickness increases because of air layer enclosed between the two blankets.
(1) A (2) B (3) C (4) D
If an object placed in front of plane mirror is moving with 8m/s and mirror also moves in the same direction with 3 m/s then calculate speed of image with respect to object
(1) 11 m/s
(2) 22 m/s
(3) 5 m/s
(4) 10 m/s
A photoelectric cell is illuminated by a point source of light 50 cm away. When the source is kept 1 m away then
(1) Number of emitted e– will be half of initial
(2) Number of emitted e– will be one fourth of initial
(3) Number of emitted e– will be double to initial
(4) Number of emitted e– will be four times to initial
Two blocks of mass 5 kg and 2 kg are placed on a frictionless surface and connected by a spring. An external kick gives a velocity of 14 ms–1 to the heavier block in the direction of lighter one. Calculate the velocity gained by the centre of mass
(1) 14 ms–1 (2) 7 ms–1
(3) 10 ms–1 (4) zero
A box is dragged across a floor by a rope which makes an angle 45º with the horizontal. The tension in the rope is 100 N while the box is dragged by 10 m. The work done is
(1) 607.1 J
(2) 707.1 J
(3) 1414.2 J
(4) 900 J
A certain metal will lliberate hydrogen from dilute acid. It will react with water to form hydrogen only when the metal is heated and the water is in the form of steam. The metal is :
(1) Potassium
(2) Copper
(3) Iron
(4) Mercury
On passing a current of 1.0 amp. for 16 min and 5 sec. through one litre solution of CuCl2. All copper of the solution was deposited at cathode. The strength of CuCl2 solution was (molar mass of Cu = 63.5, faraday constant 96500 C mol–1)
(1) 0.07 M
(2) 0.2 N
(3) 0.005 M
(4) 0.02 N
In term of efficiency of converting the energy of glucose in ATP
(1) Aerobic glycolysis is better than TCA cycle
(2) Eukaryotic cells are more efficient than prokaryotic cells
(3) Electron transport chain is not necessary for high efficiency
(4) Anaerobic conditions are much less efficient than aerobic
Which of the following is not a kind of detrimental community interaction ?
(1) Competition
(2) Protocooperation
(3) Amensalism
(4) Parasitism
Below mentioned are group of pathogenic protozoans. Find out the group belonging to flagellate protozoans
(1) Trichomonas, Eimaria
(2) Leishmania, Trypanosoma
(3) Trypanosome, Entamoeba
(4) Toxoplasma, Giardia
Multicellular, differentiated body which lacks true root, stem and leaves produce haploid gametes have root like. Leaf like, and stem like structure are
(1) Phaeophyceae algae (2) Moss
(3) Liver worts (4) Lycopsida
In an accident the ant. pituitary of a child was damaged but boy survived. What is likely to happen
(1) High level of thyroxin will be released
(2) Spermatogenesis will be stimulated
(3) The boy will not grow much in height
(4) The growth of mammary gland will be stimulated
Meiotic division is necessity of sexual reproduction because
(1) It involves two division meiosis-I and Meiosis-II
(2) Meiosis-II maintains constant number of chromosome as in parent cell
(3) It involves crossing over
(4) It reduce the chromosome number to half of parent cell
Assertion & Reason Type Questions.
Use the following statements for answering the Questions. +1 marks for each correct answer & – 1/3 marks for each incorrect answer.
(A) If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.
(B) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(C) If Assertion is True but the Reason is False.
(D) If both Assertion and Reason are False.
Assertion: A p-n junction with reverse bias can be used as a photo-diode to measure light intensity.
Reason: In a reverse bias condition the current is small but it is more sensitive to changes in incident light intensity.
(1) A (2) B (3) C (4) D
Assertion: In an elastic collision of two bodies, the momentum and energy of each body is conserved.
Reason: If two bodies stick to each other, after colliding, the collision is said to be perfectly elastic.
(1) A (2) B (3) C (4) D
Assertion: Force is required to move a body uniformly along a circle.
Reason: When the motion is uniform, acceleration is zero.
(1) A (2) B (3) C (4) D
Assertion: When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time.
Reason: Horizontal velocity has no effect on the vertical direction.
(1) A (2) B (3) C (4) D
Out of the given four waves (a), (b), (c) and (d)
y = a sin(kx + ωt) ….. (a)
y = a sin(ωt – kx) ….. (b)
y = a cos(kx + ωt) ….. (c)
y = a cos(ωt – kx) ….. (d)
emitted by four different sources S1, S2, S3, and S4 respectively, interference phenomena would be observed in space under appropriate conditions when:
(1) Source S1 emits wave (a) and S2 emits wave (b)
(2) Source S3 emits wave (c) and S4 emits wave (d)
(3) Source S2 emits wave (b) and S4 emits wave (d)
(4) S4 emits waves (d) and S3 emits waves (c)
No comments:
Write comments