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aipmt–Past papers<br />PHYSICS- UNSOLVED PAPER - 1996<br />
SECTION – I (Total Marks : 50)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices ar...
01<br />Problem<br />The  minimum  wavelength  of the X-rays  produced  by electrons  accelerated  through  a potential  d...
Problem<br />02<br />A beam of  electrons is moving  with constant  velocity  in a region  having  electric  and magnetic ...
Problem<br />03<br />An electron beam  has a  kinetic  energy  equal  to  100 eV.  Find its   wavelength  associated  with...
Problem<br />04<br />A man fires  a bullet  of mass  200 gm at  speed of  5 m/s. the gun is  of one kg mass. By what  velo...
Problem<br />05<br />In  a Fresnel  baptism  experiment,  the two positions  of lens give separation  between  the slits  ...
Problem<br />06<br />A 10 eV electron is circulating  in a plane  at right  angles to a uniform  field  at magnetic  induc...
Problem<br />07<br />A linear  harmonic  oscillator  of force  constant  2 x 106 N/m and amplitude  0.01 m has  a total  m...
Problem<br />08<br />When  NPN transistor  is used  as an amplifier, then<br />Electrons  move  from  collector  to base<b...
Problem<br />09<br />When  arsenic is  added  as an  impurity  to silicon,  the resulting  material is<br />n-type  conduc...
Problem<br />10<br />When using  a triode, as an  amplifier,  the electrons  are emitted by<br />Grid and collected  by ca...
Problem<br />11<br />The energy  of a hydrogen  atom  in its ground state  is-13.6 eV. The energy  of the level  correspon...
Problem<br />12<br />According  to Bohr’s  principle,  the relation between  principal  quantum  number (n) and   radius o...
Problem<br />13<br />In  a  discharge  tube  at  0.02 mm, there is  formation  of<br />Crooke’s dark  space<br />Faraday’s...
Problem<br />14<br />A metal  ring is  held horizontally  and bar magnet  is dropped  through  the ring with its length al...
Problem<br />15<br />The magnetic  field dB due to a small  current  element  dl at  a distance  and element  carrying  cu...
Problem<br />16<br />The energy  stored in a capacitor  of capacity C and  potential  V is given by<br /> a.CV/2<br />b. C...
Problem<br />17<br />A point   charge + q is  placed  at the mid-point of  cube  of side l. The electric flux  emerging  f...
Problem<br />18<br />An electron of mass m  and charge e is  accelerated  from  rest through  a potential  difference V in...
Problem<br />19<br />Light  travels  through  a glass  plate  of thickness t  and having  a refractive  index . If c  is t...
Problem<br />20<br />The  work  done in  turning  a magnet  of  magnetic  moment M by  an angle  of 900 from the  meridian...
Problem<br />21<br />A ray of light  from  a denser  medium  strikes  a rare  medium  as shown  in figure.  The reflected ...
Problem<br />22<br />At 0 K  which of the following  properties of  a gas will be zero ?<br />Vibration  energy <br />Dens...
Problem<br />23<br />The refractive  index  of water is 1.33.  What will be  the speed  of light in water ?<br />4 x 108 m...
Problem<br />24<br />Two sound  waves  having  a  phase  difference of  600 have  path difference  of <br />a.λ/6<br />b. ...
Problem<br />25<br />A diatomic  gas  initially at  180C is  compressed  adiabatically  to one  eighth of its   original  ...
Problem<br />26<br />An ideal gas,   undergoing  adiabatic   change,  has which of the following  pressure  temperature  r...
Problem<br />27<br />A truth   table is give.  Which of the following  has this type  of truth  table?<br />AND gate<br />...
Problem<br />28<br />This symbol  represents<br />AND gate<br />NOR gate<br />NAND gate<br />OR gate.<br />
Problem<br />29<br />The value of  critical  temperature  in terms  of Van der Waals’ constant a  and b is  given by <br /...
Problem<br />30<br />Two  vectors   are such  that . The  angle between the two  vectors will be<br />1800<br />00<br />60...
Problem<br />31<br />A nucleus  ruptures  into  two nuclear  parts,  which  have their  velocity  ratio equal to  2 : 1. W...
Problem<br />32<br />A moving   body of  mass m and  velocity  3 km/hour  collides  with a rest body  of mass 2m and  stic...
Problem<br />33<br />The kinetic  energy (Ek) of   a  photoelectron  varies  with the frequency  (v) of the  incident  rad...
Problem<br />34<br />A ball  is  dropped  from a spacecraft  revolving  around  the earth  at a height of  120 km. What wi...
Problem<br />35<br />If a photon has  velocity  c and  frequency v,  then  which of the following  represents its waveleng...
Problem<br />36<br />The  dimensions  of  impulse are  equal to  that of<br />Pressure <br />Linear  momentum<br />Force<b...
Problem<br />37<br />The equation  of  a sound wave is  y =0.0015 sin  (62.4x + 316t).  Find the wavelength  of this wave ...
Problem<br />38<br />A  force  vector  applied  on a mass is represented  as   and accelerates  with 1  m/s2. What will be...
Problem<br />39<br />A body dropped from a height  h with initial velocity zero, strikes the ground with  a  velocity 3 m/...
Problem<br />40<br />A particle starts with S.H.M.  from the mean position as shown in the fig. Below. Its  amplitude  is ...
Problem<br />41<br />What will be  the  formulae  of mass of  the earth in  terms  of  g, R and G?<br />a.<br />b.<br />c....
Problem<br />42<br />The  velocity  of photons  is proportional  to (where v = frequency)<br />a.1/√v<br />b. V2<br />c. v...
Problem<br />43<br />If  a  convex  lens of  focal  length  80 cm and a  concave  lens of  focal  length 50 cm are   combi...
Problem<br />44<br />The  density  of a cube  is measured by  meausuring  its mass and length  of its  sides.  If the maxi...
Problem<br />45<br />An  equation  is given  here  where  P = Pressure,  V = Volume and  = Absolute  temperature.  If a an...
Problem<br />46<br />Which of the  following   dimensions will be  the same as  that  of time ?<br />a. L/R<br />b. C/L<br...
Problem<br />47<br />Two equal  electric  currents  are flowing  perpendicular to  each other shown in  the figure. AB and...
Problem<br />48<br />A body  is whirled in   a horizontal  circle  of radius  20 cm.  It has an angular velocity of  10 ra...
Problem<br />49<br />A  10 N  force  is applied  on a body  produce  in it an  acceleration of  1 m/s2. The mass  of the b...
Problem<br />50<br />What will be the  equivalent resistance  between  the two  points  A and D?<br />30Ω<br />40 Ω<br />1...
For solution visit www.vasista.net<br />
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AIPMT Physics 1996

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AIPMT Physics 1996

  1. 1. aipmt–Past papers<br />PHYSICS- UNSOLVED PAPER - 1996<br />
  2. 2. SECTION – I (Total Marks : 50)<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. 01<br />Problem<br />The minimum wavelength of the X-rays produced by electrons accelerated through a potential difference of V volts is directly proportion to<br />a.1/v<br />b. √v<br />c. V2<br />d.1/√v<br />
  4. 4. Problem<br />02<br />A beam of electrons is moving with constant velocity in a region having electric and magnetic fields of strength 20 Vm-1 and 0.5 T at right angles to the direction of motion of the electrons. What is the velocity of the electrons?<br />8 ms-1<br />5.5 ms-1<br />20 ms-1<br />40 ms-1<br />
  5. 5. Problem<br />03<br />An electron beam has a kinetic energy equal to 100 eV. Find its wavelength associated with a beam, if mass of electron = 9.1 x 10-31 kg and 1 eV = 1.6 x 10-19 J/eV. (Planck’s constant = 6.6 x 10-34 J-s)<br />24. 6 Å<br />0.12 Å<br />1.2 Å<br />6.3 Å.<br />
  6. 6. Problem<br />04<br />A man fires a bullet of mass 200 gm at speed of 5 m/s. the gun is of one kg mass. By what velocity the gun rebounds backward?<br />1 m/s<br />0.01m/s<br />0.1m/s<br />10 m/s.<br />
  7. 7. Problem<br />05<br />In a Fresnel baptism experiment, the two positions of lens give separation between the slits as 16 cm and 9 cm respectively. What is the actual distance of separation?<br />13 cm<br />14 cm<br />12.5 cm<br />12 cm.<br />
  8. 8. Problem<br />06<br />A 10 eV electron is circulating in a plane at right angles to a uniform field at magnetic induction 10-4Wb/m2 (= 1.0 gauss), the orbital radius of electron is <br />11 cm<br />18 cm<br />12 cm<br />16 cm.<br />
  9. 9. Problem<br />07<br />A linear harmonic oscillator of force constant 2 x 106 N/m and amplitude 0.01 m has a total mechanical energy of 160 J. Its <br />P.E. is 160 J<br />P.E. is zero <br />P.E. is 100 J<br />P.E. is 120 J <br />
  10. 10. Problem<br />08<br />When NPN transistor is used as an amplifier, then<br />Electrons move from collector to base<br />Holes move from base to emitter <br />Electrons move from base to collector <br />Electrons move from emitter to base.<br />
  11. 11. Problem<br />09<br />When arsenic is added as an impurity to silicon, the resulting material is<br />n-type conductor <br />n-type semiconductor <br />p-type semiconductor <br />none of these.<br />
  12. 12. Problem<br />10<br />When using a triode, as an amplifier, the electrons are emitted by<br />Grid and collected by cathode only <br />Cathode and collected by the anode only <br />Anode and collected by cathode only <br />Anode and collected by the gird and by cathode. <br />
  13. 13. Problem<br />11<br />The energy of a hydrogen atom in its ground state is-13.6 eV. The energy of the level corresponding to the quantum number n = 2 in the hydrogen atom is<br />-0.54 eV<br />-3.4 eV<br />-2.72 eV<br />-0.85 eV.<br />
  14. 14. Problem<br />12<br />According to Bohr’s principle, the relation between principal quantum number (n) and radius of orbit is<br />a. <br />b.<br />c.<br />d.<br />
  15. 15. Problem<br />13<br />In a discharge tube at 0.02 mm, there is formation of<br />Crooke’s dark space<br />Faraday’s dark space<br />Both space partly <br />None of these<br />
  16. 16. Problem<br />14<br />A metal ring is held horizontally and bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet is<br />More than g<br />Equal to g<br />Less than g<br />Either ‘a’ or ‘c’.<br />
  17. 17. Problem<br />15<br />The magnetic field dB due to a small current element dl at a distance and element carrying current I is<br />a.<br />b.<br />c.<br />d. <br />
  18. 18. Problem<br />16<br />The energy stored in a capacitor of capacity C and potential V is given by<br /> a.CV/2<br />b. C2V2/2<br />c. CV2/2<br />d. C2V/2<br />
  19. 19. Problem<br />17<br />A point charge + q is placed at the mid-point of cube of side l. The electric flux emerging from the cube is<br /> a.<br />b.<br />c. zero<br />d.<br />
  20. 20. Problem<br />18<br />An electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum. Its final velocity will be<br />a. √2eV/m<br />b. √eV/m<br />c. 2V/2m<br />d. eV/m<br />
  21. 21. Problem<br />19<br />Light travels through a glass plate of thickness t and having a refractive index . If c is the velocity of light in vacuum, the time taken by light to travel this thickness of glass is <br />a. t/μc<br />b. μt/c<br />c. Tμc<br />d. tc/μ<br />
  22. 22. Problem<br />20<br />The work done in turning a magnet of magnetic moment M by an angle of 900 from the meridian, is n times the corresponding work done to turn it through an angle of 600. The value of n is given by<br />1/2<br />1/4<br />2<br />1.<br />
  23. 23. Problem<br />21<br />A ray of light from a denser medium strikes a rare medium as shown in figure. The reflected and refracted rays makes an angle of 900 with each other. The angles of refection and refraction are r and r’. The critical angle would be<br />sin-1 (tan r)<br />tan-1 (sin r)<br />sin-1 (tan r)<br />tan-1 (sin r)<br />
  24. 24. Problem<br />22<br />At 0 K which of the following properties of a gas will be zero ?<br />Vibration energy <br />Density <br />Kinetic energy <br />Potential energy.<br />
  25. 25. Problem<br />23<br />The refractive index of water is 1.33. What will be the speed of light in water ?<br />4 x 108 m/s<br />1.33 x 108 m/s<br />3 x 108 m/s<br />2.25 x 108 m/s<br />
  26. 26. Problem<br />24<br />Two sound waves having a phase difference of 600 have path difference of <br />a.λ/6<br />b. λ/3<br />c. 21<br />d. λ/2<br />
  27. 27. Problem<br />25<br />A diatomic gas initially at 180C is compressed adiabatically to one eighth of its original volume. The temperature after compression will be<br />395.40C<br />1440C<br />180C<br />887.40C<br />
  28. 28. Problem<br />26<br />An ideal gas, undergoing adiabatic change, has which of the following pressure temperature relationship?<br /> = constant <br /> = constant <br /> = constant<br /> = constant<br />
  29. 29. Problem<br />27<br />A truth table is give. Which of the following has this type of truth table?<br />AND gate<br />OR gate<br />XOR gate<br />NOR gate<br />
  30. 30. Problem<br />28<br />This symbol represents<br />AND gate<br />NOR gate<br />NAND gate<br />OR gate.<br />
  31. 31. Problem<br />29<br />The value of critical temperature in terms of Van der Waals’ constant a and b is given by <br />a.<br />b.<br />c.<br />d.<br />
  32. 32. Problem<br />30<br />Two vectors are such that . The angle between the two vectors will be<br />1800<br />00<br />600<br />900<br />
  33. 33. Problem<br />31<br />A nucleus ruptures into two nuclear parts, which have their velocity ratio equal to 2 : 1. What will be the ratio of their nuclear size (nuclear radius)?<br />31/2 : 1<br />1 : 31/2<br />21/3 : 1<br />1 : 21/3<br />
  34. 34. Problem<br />32<br />A moving body of mass m and velocity 3 km/hour collides with a rest body of mass 2m and sticks to it. Now the combined mass starts to move. What will be the combined velocity ?<br />3km/hour<br />4km/hour<br />1 km/hour<br />2 km/hour<br />
  35. 35. Problem<br />33<br />The kinetic energy (Ek) of a photoelectron varies with the frequency (v) of the incident radiation as which of the following graph?<br />a.<br />b.<br />c.<br />d.<br />
  36. 36. Problem<br />34<br />A ball is dropped from a spacecraft revolving around the earth at a height of 120 km. What will happen to the ball?<br />It will fall down to the earth gradually <br />It will go very far in the space <br />It will continue to move with the same speed along the original orbit of spacecraft <br />It will move with the same speed, tangentially to the spacecraft. <br />
  37. 37. Problem<br />35<br />If a photon has velocity c and frequency v, then which of the following represents its wavelength?<br />a. Hv/c2<br />b. hv<br />c. hc/E<br />d. hv/c<br />
  38. 38. Problem<br />36<br />The dimensions of impulse are equal to that of<br />Pressure <br />Linear momentum<br />Force<br />Angular momentum.<br />
  39. 39. Problem<br />37<br />The equation of a sound wave is y =0.0015 sin (62.4x + 316t). Find the wavelength of this wave <br />0.3 unit<br />0.2 unit<br />0.1unit<br />cannot be calculated.<br />
  40. 40. Problem<br />38<br />A force vector applied on a mass is represented as and accelerates with 1 m/s2. What will be the mass of the body?<br />a.10 kg<br />b.20 kg<br />c.10√2kg<br />d. 2√10kg<br />
  41. 41. Problem<br />39<br />A body dropped from a height h with initial velocity zero, strikes the ground with a velocity 3 m/s. Another body of same mass dropped from the same height h with an initial velocity of 4 m/s. Find the final velocity of second mass, with which it strikes the ground<br />5m/s<br />12 m/s<br />3 m/s<br />4 m/s.<br />
  42. 42. Problem<br />40<br />A particle starts with S.H.M. from the mean position as shown in the fig. Below. Its amplitude is A and its time period is T. At one time, its speed is half that of the maximum speed. What is this displacement?<br />a.2A/√3<br />b. 3A/√2<br />c.√2A/3<br />d.√3A/2<br />
  43. 43. Problem<br />41<br />What will be the formulae of mass of the earth in terms of g, R and G?<br />a.<br />b.<br />c.<br />d.<br />
  44. 44. Problem<br />42<br />The velocity of photons is proportional to (where v = frequency)<br />a.1/√v<br />b. V2<br />c. v<br />d. √v<br />
  45. 45. Problem<br />43<br />If a convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together, what will be their resulting power ?<br />+ 7.5 D<br />-0.75 D<br />+ 6. 5 D<br />-6.5 D.<br />
  46. 46. Problem<br />44<br />The density of a cube is measured by meausuring its mass and length of its sides. If the maximum error in the measurement of mass and lengths are 3% and 2% respectively, the maximum error in the measurement of density would be<br />12%<br />14 %<br />7%<br />9 %.<br />
  47. 47. Problem<br />45<br />An equation is given here where P = Pressure, V = Volume and = Absolute temperature. If a and b are constants, the dimensions of ‘a’ will be<br />ML-5T-1<br />ML5T1<br />ML5T2<br />M-1L5T2.<br />
  48. 48. Problem<br />46<br />Which of the following dimensions will be the same as that of time ?<br />a. L/R<br />b. C/L<br />c.LC<br />d. R/L<br />
  49. 49. Problem<br />47<br />Two equal electric currents are flowing perpendicular to each other shown in the figure. AB and CD are perpendicular to each other and symmetrically placed with respect to the currents. Where do we expect the resultant magnetic field to be zero?<br />On CD<br />On AB<br />On both OD and BO<br />On both AB and CD.<br />
  50. 50. Problem<br />48<br />A body is whirled in a horizontal circle of radius 20 cm. It has an angular velocity of 10 rad/s. What is its linear velocity at any point on circular path ?<br />20 m/s<br />√2 m/s<br />10 m/s<br />2 m/s.<br />
  51. 51. Problem<br />49<br />A 10 N force is applied on a body produce in it an acceleration of 1 m/s2. The mass of the body is <br />15 kg<br />20 kg<br />10 kg<br />5 kg.<br />
  52. 52. Problem<br />50<br />What will be the equivalent resistance between the two points A and D?<br />30Ω<br />40 Ω<br />10 Ω<br />10 Ω<br />
  53. 53. For solution visit www.vasista.net<br />

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