This Video contains solution of the following MCQs.
1. Power Law determines:
*power *work *intensity *loudness of sound
2. If the average and instantaneous velocities of a body are the same, the body will move with:
*Variable velocity *Uniform velocity
*Uniform acceleration *Variable acceleration
3. The maximum number of beats per second which can be detected by the human ear is:
*2 *3 *5 *7
4. In the terrestrial telescope, the central lens is used to:
*erect the image *increase magnifying power
*both of these *none of these
5. Two forces act together on an object; the magnitude of their resultant is minimum when the angle between them is:
*00 *450 *900 *1800
6. A body falls freely .The distance covered by it in 2 sec is:
*9.8 m *19.6 m *39.2 m *100 m
7. The centre of mass of a body:
*always coincides with the centre of gravity
* never coincides with the centre of gravity
*coincides with the centre of gravity only in uniform field
*is lower than the centre of gravity
8. The weight of a man is 600 N at the earth, his weight on the moon, where gm=g/6 will be:
*3600N *600N *300N *100N
9. The angular momentum of a particle changes from 0 to 720 is in 4 sec, the magnitude of torque acting will be:
*1440J *360J *180J *4.5J
10. The wave enters from one medium to another medium, no change occurs in its:
*frequency *wavelength *amplitude *speed
11. Monochromatic yellow light is unable to show:
*reflection *refraction *dispersion *interference
12. Power of magnifying glass having focal length 5cm is:
*5 dioptre *10 dioptre *20 dioptre *50 dioptre
13. The dimension of force is:
*MLT *MLT-1 *MLT2 * MLT-2
14. Light year is the unit of:
*time *distance *velocity *luminous intensity
15. The time period of simple pendulum depends upon:
*mass *length
*acceleration due to gravity *both length and acceleration due to gravity
16. The sum of torques acting on a body is zero, and then this will be constant:
*angular momentum *force
*linear momentum *pressure
17. The weight lifter consumes 500J of energy to lift a load in 2 seconds, the power used by him is:
*125 watt *250 watt *500 watt *1000 watt
1. Power Law determines:
*power *work *intensity *loudness of sound
2. If the average and instantaneous velocities of a body are the same, the body will move with:
*Variable velocity *Uniform velocity
*Uniform acceleration *Variable acceleration
3. The maximum number of beats per second which can be detected by the human ear is:
*2 *3 *5 *7
4. In the terrestrial telescope, the central lens is used to:
*erect the image *increase magnifying power
*both of these *none of these
5. Two forces act together on an object; the magnitude of their resultant is minimum when the angle between them is:
*00 *450 *900 *1800
6. A body falls freely .The distance covered by it in 2 sec is:
*9.8 m *19.6 m *39.2 m *100 m
7. The centre of mass of a body:
*always coincides with the centre of gravity
* never coincides with the centre of gravity
*coincides with the centre of gravity only in uniform field
*is lower than the centre of gravity
8. The weight of a man is 600 N at the earth, his weight on the moon, where gm=g/6 will be:
*3600N *600N *300N *100N
9. The angular momentum of a particle changes from 0 to 720 is in 4 sec, the magnitude of torque acting will be:
*1440J *360J *180J *4.5J
10. The wave enters from one medium to another medium, no change occurs in its:
*frequency *wavelength *amplitude *speed
11. Monochromatic yellow light is unable to show:
*reflection *refraction *dispersion *interference
12. Power of magnifying glass having focal length 5cm is:
*5 dioptre *10 dioptre *20 dioptre *50 dioptre
13. The dimension of force is:
*MLT *MLT-1 *MLT2 * MLT-2
14. Light year is the unit of:
*time *distance *velocity *luminous intensity
15. The time period of simple pendulum depends upon:
*mass *length
*acceleration due to gravity *both length and acceleration due to gravity
16. The sum of torques acting on a body is zero, and then this will be constant:
*angular momentum *force
*linear momentum *pressure
17. The weight lifter consumes 500J of energy to lift a load in 2 seconds, the power used by him is:
*125 watt *250 watt *500 watt *1000 watt
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