AFMC Physics 2003


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  • AFMC Physics 2003

    1. 1. AFMC–Past papers<br />PHYSICS- UNSOLVED PAPER - 2003<br />
    2. 2. SECTION – A<br />Single Correct Answer Type<br />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<br />
    3. 3. Problem<br />01<br />A body goes 20 km north and then 10 km due east. The displacement of body from its starting point is<br />30 km <br />25.2 km<br />22.36 km<br />10 km<br />
    4. 4. Problem<br />02<br />Which pair is not correct<br />Temperature - thermometer<br />Atmospheric pressure - Barometer<br />Relative density - Hygrometer<br />Unit of charge - Coulomb<br />
    5. 5. Problem<br />03<br />The practical unit of resistance is £2. 1 O is equal to<br />1018 emu of resistance<br />109 emu of resistance<br />1015 emu of resistance<br />None of these<br />
    6. 6. Problem<br />04<br />Chronometer measures<br />Area <br />Time<br />Length<br />Temperature<br />
    7. 7. Problem<br />05<br />Which one is not a unit of time<br />Leap year<br />Year<br />Shake<br />Light year<br />
    8. 8. Problem<br />06<br />A body measures 5 N in air and 2 N when put in water. The buoyant force is<br />7 N<br />9N<br />3 N <br />None of these<br />
    9. 9. Problem<br />07<br />The absorptive power of perfectly black body is<br />0<br />1<br />Less than 1<br />Infinity<br />
    10. 10. Problem<br />08<br />A person swimming in a fresh water poo! swims, obeying<br />Newton's second law<br />Gravitational law <br />Newton's third law<br />Newton's first law<br />
    11. 11. Problem<br />09<br />According to classical theory of Rutherford model the path of electron will be<br />Parabolic <br />Hyperbolic<br />Circular<br />Elliptical<br />
    12. 12. Problem<br />10<br />Bohr's theory was modified by<br />Rutherford and Soddy<br />Planck<br />Hund<br />Somerfeld<br />
    13. 13. Problem<br />11<br />Which one is a vector quantity<br />Time <br />Temperature<br />Flux density<br />Magnetic field intensity<br />
    14. 14. Problem<br />12<br />Farad is the unit of<br />Current <br />Charge<br />Capacitance <br />Resistance<br />
    15. 15. Problem<br />13<br />The passenger move forward when train stops due to<br />Inertia of passenger<br />Inertia of train<br />Gravitation pull of earth<br />None of these<br />
    16. 16. Problem<br />14<br />The electrostatic capacitance depends on<br />Nature of conductor<br />Size of conductor<br />Thickness of conductor<br />Colour of conductor<br />
    17. 17. Problem<br />15<br />The formation of rainbow is due to the phenomenon of<br />Reflection<br />Dispersion<br />Refraction <br />Interference<br />
    18. 18. Problem<br />16<br />The formation of mirages is explained by<br />Total reflection of light<br />Refraction of light<br />Diffraction<br />Dispersion<br />
    19. 19. Problem<br />17<br />Which one proves transverse nature of waves<br />Polarization<br />Diffraction<br />Interference <br />All<br />
    20. 20. Problem<br />18<br />The intensive property among the following is<br />Energy <br />Volume<br />Entropy <br />Temperature<br />
    21. 21. Problem<br />19<br />Electric fan works on the principle of<br />Electric motor <br />Electric generator<br />Both of these<br />None of these<br />
    22. 22. Problem<br />20<br />Doppler's effect in sound is due to<br />Motion of source <br />Motion of observer<br />Relative motion of source and observer<br />None of these<br />
    23. 23. Problem<br />21<br />The duration of day is highest in<br />Mercury <br />Venus<br />Earth <br />Mars<br />
    24. 24. Problem<br />22<br />Two similar waves are propagating in X-axis and another one in F-axis. When they collide superimpose the resultant wave will be<br />Elliptical<br />Hyperbolic<br />Straight line <br />Parabolic<br />
    25. 25. Problem<br />23<br />Photoelectric effect shows<br />Wave nature of electrons<br />Particle nature of light<br />Both (a) and (b) <br />None of these<br />
    26. 26. Problem<br />24<br />Kirchhoff's I and II law are based on conservation of<br />Charge and energy<br />Mass and energy<br />Mass and charge <br />None of these<br />
    27. 27. Problem<br />25<br />The filament of bulb is<br />Mercury <br />Copper<br />Tungsten<br />None of these<br />
    28. 28. Problem<br />26<br />The idea of calculus was given by<br />Newton <br />Einstein<br />Marconi <br />Planck<br />
    29. 29. Problem<br />27<br />Ohm's law is not obeyed by<br />Electrolytes<br />Discharge tube<br />Vacuum tubes <br />All of these<br />
    30. 30. Problem<br />28<br />If size of aperture is decreased<br />Intensity of image is decreased<br />No effect in formation of image<br />Any of the above <br />None of these<br />
    31. 31. Problem<br />29<br />Pendulum after some time becomes slow in motion and finally stops due to<br />Air friction <br />Earth's gravity<br />Mass of pendulum<br />None of these<br />
    32. 32. Problem<br />30<br />Absolute zero is the condition at which<br />Molecular motion ceases<br />Gas becomes liquid<br />Gas cannot be liquefied<br />Random motion of molecules occur<br />
    33. 33. Problem<br />31<br />The process by which gas is converted into liquid<br />Sublimation <br />Evaporation<br />Liquefaction<br />None of these<br />
    34. 34. Problem<br />32<br />a-particles are<br />ionised helium atom<br />hydrogen atom<br />neutral atom <br />All of these<br />
    35. 35. Problem<br />33<br />Atoms having different atomic number as well as different mass number but having same number of neutrons<br />isotopes <br />isobars<br />isotones <br />isodiapheres.<br />
    36. 36. Problem<br />34<br />Meteors are<br />Small stars<br />Burnt pieces of comets that fall on earth<br />Comets without tails<br />None of these<br />
    37. 37. Problem<br />35<br />Two wires carry current in different direction. They will<br />Attract each other<br />Repel each other<br />Create gravitational field<br />Any of the above<br />
    38. 38. Problem<br />36<br />Retina of eye corresponds to which part of camera<br />Film <br />Shutter<br />Aperture<br />Lens<br />
    39. 39. Problem<br />37<br /> C.V. Raman received nobel prize for which of the following phenomenon<br />Theory of relativity <br />Law of gravitation<br />Neutron<br />Elastic scattering of light by molecules<br />
    40. 40. Problem<br />38<br />Force responsible for the circular motion of the body is<br />Centripetal force <br />Centrifugal force<br />Gravitational force<br />None of these<br />
    41. 41. Problem<br />39<br />Quality depends on<br />Intensity<br />Loudness<br />Timbre <br />Frequency<br />
    42. 42. Problem<br />40<br />In fission of U-235, the percentage of mass converged into energy is about<br />0.1% <br />0.25%<br />0.01% <br />2%<br />
    43. 43. Problem<br />41<br />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<br />303 ms-1<br />332 ms-1<br />323.2 ms-1<br />300 ms-1<br />
    44. 44. Problem<br />42<br />Increase in pressure at one point of the enclosed liquid in equilibrium of rest is transmitted equally to all other points of liquid illustrates<br />Buoyant force<br />Pascal's law<br />Gravitational law <br />Electrostatic law<br />
    45. 45. Problem<br />43<br />When light passed from one medium to another which one of the quantities remain unchanged?<br />Frequency <br />Velocity<br />Wavelength<br />Refractive index<br />
    46. 46. Problem<br />44<br />A cyclist moving at a speed of 20 m/s takes a turn, if he doubles his speed then chance of over turn<br />Double <br />Halved<br />Four times<br />Becomes ¼ times<br />
    47. 47. Problem<br />45<br />A convex lens becomes less diverging when placed in<br />Oil<br />Water<br />Both (a) and (b)<br />None of these<br />
    48. 48. Problem<br />46<br />A plano convex lens has refractive index 1.6 and radius of curvature 60 cm. what is focal length of lens?<br />50 cm<br />100 cm<br />200 cm<br />150 cm<br />
    49. 49. Problem<br />47<br />A particle covers 150m in 8th second starting from rest, its acceleration is<br />15 m/s2<br />20 m/s2<br />10 m/s2<br />8 m/s2<br />
    50. 50. Problem<br />48<br />A particle covers 150m in 8th second starting from rest, its acceleration is<br />15 m/s2<br />20 m/s2<br />10 m/s2<br />8 m/s2<br />
    51. 51. Problem<br />49<br />When a metallic sphere is heated the largest increase is in its<br />Volume<br />Area<br />Diameter<br />Same in all<br />
    52. 52. Problem<br />50<br />A diamagnetic substance is placed in a magnetic field of a bar magnet. Then it is <br />Repelled by magnet<br />Attracted by magnet<br />Attracted by S-poles and repelled by N-poles<br />Attracted by N-poles and repelled by S-poles<br />
    53. 53. For solution visit<br />