PHYSICS QUIZ TEST PAPER

PHYSICS QUIZ TEST PAPER

1. Electron volt is the unit of:

a) Energy                 b) Charge                          c) Current                                  d) Potential difference

 

2. In a perfectly elastic collision, the physical quantity which is conserved is:

a) Mass                    b) Kinetic energy            c) Potential  energy               d) Angular momentum

 

3. The product of moment of inertia and angular acceleration is equal to:

a) Torque                b) Force                             c) Work                                      d) Angular momentum

 

4. The SI Unit of electric field intensity is:

a) Volt/ coulomb              b) Newton/ampere

c) Newton / coulomb        d) Metre/volt

 

5. A wound watch spring has:

a) No energy stored in it                                               b) Mechanical kinetic energy is stored in it

c) Mechanical potential energy stored in it                   d) Electrical energy stored in it

 

6. When the door of a refrigerator kept in a room is opened and is kept open for some time, the temperature of the room will:

a) Rise                       b) Fall                                  c) Remain unaltered             d) None of these

 

7. Doppler shift in frequency does not depend upon:

a) The frequency of the source                 b) speed of the observer

c) The frequency of waves produced        d) The distance from the source to the observer

 

8. If a represents the charge of an electron and V the potential difference between two points, eV represent:

a) Torque                b) Momentum                c) Energy                 d) Power

 

9. The angular speed of the minutes' hand of a watch in radian /sec is:

a) Pie/60                  b) Pie/30                      c) Pie 3600               d) Pie 1000

 

10. Of the following physical quantities which have the same dimensions are:

a) Energy and Torque                     b) Impulse and work     

c) Impulse and forque                   d) None of these

 

11. The power factor of a series LCR circuit for the condition of resonance is:

a) 1                             b) 1/√2                               c) 0                                               d) ½

 

12. The frequency of a human male's voice as compared to that of a female is:

a) Low                       b) High                                c) Equal                                      d) None of these

 

13. It is possible to recognize a person by hearing his voice because his voice has a definite:

a) Pitch                     b) Quality                          c) Frequency                            d) Intensity

 

14. A quantity not involved directly in the rotational motion of a body is:

a) Moment of inertia         b) Torque

c) Angular velocity           d) Mass

 

15. A fan produces a feeling of comfort during hot weather because:

a) Our body radiates more heat in air         b) Fan supplies cool air

c) Conductivity of air increases                   d) Our perspiration evaporates rapidly

 

16. The energy and momentum of a photon are given by E= h õ and p = h ë respectively. The velocity of photon will be:

a) Ep                          b) E/p                                  c) P/E                                          d) E/p2

 

17. The speed of light in diamond is 2/5 of its speed in air. The refractive index of diamond is:

a) 2                             b) 2.5                                   c) 4                                               d) 5

 

18. When light travels from one medium to another, which of the following quantities never undergoes a change:

a) Velocity           b) Wavelength

c) Frequency      d) Refractive Index

 

ANSWER SHEET

1.a          2.b          3.a          4.c          5.c          6.a          7.d          8.c          9.d          10.a

11.a        12.a        13.b       14.d        15.d        16.b        17.b       18.c