AFMC Physics 2003

AFMC–Past papers PHYSICS- UNSOLVED PAPER - 2003

SECTION – A Single Correct Answer Type There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate

Problem 01 A body goes 20 km north and then 10 km due east. The displacement of body from its starting point is 30 km 25.2 km 22.36 km 10 km

Problem 02 Which pair is not correct Temperature - thermometer Atmospheric pressure - Barometer Relative density - Hygrometer Unit of charge - Coulomb

Problem 03 The practical unit of resistance is £2. 1 O is equal to 1018 emu of resistance 109 emu of resistance 1015 emu of resistance None of these

Problem 04 Chronometer measures Area Time Length Temperature

Problem 05 Which one is not a unit of time Leap year Year Shake Light year

Problem 06 A body measures 5 N in air and 2 N when put in water. The buoyant force is 7 N 9N 3 N None of these

Problem 07 The absorptive power of perfectly black body is 0 1 Less than 1 Infinity

Problem 08 A person swimming in a fresh water poo! swims, obeying Newton's second law Gravitational law Newton's third law Newton's first law

Problem 09 According to classical theory of Rutherford model the path of electron will be Parabolic Hyperbolic Circular Elliptical

Problem 10 Bohr's theory was modified by Rutherford and Soddy Planck Hund Somerfeld

Problem 11 Which one is a vector quantity Time Temperature Flux density Magnetic field intensity

Problem 12 Farad is the unit of Current Charge Capacitance Resistance

Problem 13 The passenger move forward when train stops due to Inertia of passenger Inertia of train Gravitation pull of earth None of these

Problem 14 The electrostatic capacitance depends on Nature of conductor Size of conductor Thickness of conductor Colour of conductor

Problem 15 The formation of rainbow is due to the phenomenon of Reflection Dispersion Refraction Interference

Problem 16 The formation of mirages is explained by Total reflection of light Refraction of light Diffraction Dispersion

Problem 17 Which one proves transverse nature of waves Polarization Diffraction Interference All

Problem 18 The intensive property among the following is Energy Volume Entropy Temperature

Problem 19 Electric fan works on the principle of Electric motor Electric generator Both of these None of these

Problem 20 Doppler's effect in sound is due to Motion of source Motion of observer Relative motion of source and observer None of these

Problem 21 The duration of day is highest in Mercury Venus Earth Mars

Problem 22 Two similar waves are propagating in X-axis and another one in F-axis. When they collide superimpose the resultant wave will be Elliptical Hyperbolic Straight line Parabolic

Problem 23 Photoelectric effect shows Wave nature of electrons Particle nature of light Both (a) and (b) None of these

Problem 24 Kirchhoff's I and II law are based on conservation of Charge and energy Mass and energy Mass and charge None of these

Problem 25 The filament of bulb is Mercury Copper Tungsten None of these

Problem 26 The idea of calculus was given by Newton Einstein Marconi Planck

Problem 27 Ohm's law is not obeyed by Electrolytes Discharge tube Vacuum tubes All of these

Problem 28 If size of aperture is decreased Intensity of image is decreased No effect in formation of image Any of the above None of these

Problem 29 Pendulum after some time becomes slow in motion and finally stops due to Air friction Earth's gravity Mass of pendulum None of these

Problem 30 Absolute zero is the condition at which Molecular motion ceases Gas becomes liquid Gas cannot be liquefied Random motion of molecules occur

Problem 31 The process by which gas is converted into liquid Sublimation Evaporation Liquefaction None of these

Problem 32 a-particles are ionised helium atom hydrogen atom neutral atom All of these

Problem 33 Atoms having different atomic number as well as different mass number but having same number of neutrons isotopes isobars isotones isodiapheres.

Problem 34 Meteors are Small stars Burnt pieces of comets that fall on earth Comets without tails None of these

Problem 35 Two wires carry current in different direction. They will Attract each other Repel each other Create gravitational field Any of the above

Problem 36 Retina of eye corresponds to which part of camera Film Shutter Aperture Lens

Problem 37 C.V. Raman received nobel prize for which of the following phenomenon Theory of relativity Law of gravitation Neutron Elastic scattering of light by molecules

Problem 38 Force responsible for the circular motion of the body is Centripetal force Centrifugal force Gravitational force None of these

Problem 39 Quality depends on Intensity Loudness Timbre Frequency

Problem 40 In fission of U-235, the percentage of mass converged into energy is about 0.1% 0.25% 0.01% 2%

Problem 41 Two closed organ pipes of length 100 cm and 101 cm long given 16 beats in 20 sec. When each pipe is rounded in its fundamental mode calculate the velocity of sound 303 ms-1 332 ms-1 323.2 ms-1 300 ms-1

Problem 42 Increase in pressure at one point of the enclosed liquid in equilibrium of rest is transmitted equally to all other points of liquid illustrates Buoyant force Pascal's law Gravitational law Electrostatic law

Problem 43 When light passed from one medium to another which one of the quantities remain unchanged? Frequency Velocity Wavelength Refractive index

Problem 44 A cyclist moving at a speed of 20 m/s takes a turn, if he doubles his speed then chance of over turn Double Halved Four times Becomes ¼ times

Problem 45 A convex lens becomes less diverging when placed in Oil Water Both (a) and (b) None of these

Problem 46 A plano convex lens has refractive index 1.6 and radius of curvature 60 cm. what is focal length of lens? 50 cm 100 cm 200 cm 150 cm

Problem 47 A particle covers 150m in 8th second starting from rest, its acceleration is 15 m/s2 20 m/s2 10 m/s2 8 m/s2

Problem 48 A particle covers 150m in 8th second starting from rest, its acceleration is 15 m/s2 20 m/s2 10 m/s2 8 m/s2

Problem 49 When a metallic sphere is heated the largest increase is in its Volume Area Diameter Same in all

Problem 50 A diamagnetic substance is placed in a magnetic field of a bar magnet. Then it is Repelled by magnet Attracted by magnet Attracted by S-poles and repelled by N-poles Attracted by N-poles and repelled by S-poles

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AFMC Physics 2003

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