This Video contains solution of the following MCQs.
1.If F=3i and d=6j, the work done will be:
* Zero *2 *9 *18
2.Beats are produced due to:
* diffraction of waves in time *reflection of waves in time
*interference of waves in time *polarization of waves in time
3.The waveform of waves will be spherical when the rays of light are:
* parallel *perpendicular *monochromatic *not parallel
4.If 'F' be the limiting friction and 'R' the normal reaction. Then co-efficient of static friction`μ' is:
* μ=F/R *μ=R/F *μ=FR *μ=1/FR
5.The dimensions of G/g are:
* M0L-1T-2 * M1L2T-2 * M-1L2T-2 * M-1L2T0
6.The magnitude of resultant of two forces of magnitudes 5N and 10N cannot be:
* 4N *6N *9N *13N
7.An angle subtended at its centre by an arc whose length is double to that of its radius is:
*2° *57.3° *80° *114.6°
8.In a spectrometer, the focal length of convex lens is equal to length of its:
*telescope *obstacles *collimator *turntable
9.The point which describes the motion of the whole system or body is known as the:
*center of mass *inertia *centre of gravity *moment of inertia
10.The product of frequency and time period is:
*1 *2 *3 *4
11. When a transverse wave travelling through a rare medium is reflected from a dense medium, then phase change produced in it will be equal to:
*0° *90° *180° *360°
12. The gravitational constant was determined experimentally by:
*Newton *Einstein *Cavendish *Maxwell
13. A projectile is thrown upward with a certain velocity. Its time of flight will be minimum,if it is launched at an angle of:
*30° *45° *60° *75°
14.(i x j) . (j x i) is:
*-1 *k *1 *zero
15. Two forces of equal magnitude but opposite direction in direction and not acting along the same straight line form a:
*circle *couple *power *torque
16. If the time interval is very small (∆t→0), the rate of change of velocity of a body is called:
*Average acceleration *acceleration
*instantaneous acceleration *constant acceleration
17. Weber Fechner law is:
*I α Log L * L α Log I * I α 1/ Log L * I α Log L
1.If F=3i and d=6j, the work done will be:
* Zero *2 *9 *18
2.Beats are produced due to:
* diffraction of waves in time *reflection of waves in time
*interference of waves in time *polarization of waves in time
3.The waveform of waves will be spherical when the rays of light are:
* parallel *perpendicular *monochromatic *not parallel
4.If 'F' be the limiting friction and 'R' the normal reaction. Then co-efficient of static friction`μ' is:
* μ=F/R *μ=R/F *μ=FR *μ=1/FR
5.The dimensions of G/g are:
* M0L-1T-2 * M1L2T-2 * M-1L2T-2 * M-1L2T0
6.The magnitude of resultant of two forces of magnitudes 5N and 10N cannot be:
* 4N *6N *9N *13N
7.An angle subtended at its centre by an arc whose length is double to that of its radius is:
*2° *57.3° *80° *114.6°
8.In a spectrometer, the focal length of convex lens is equal to length of its:
*telescope *obstacles *collimator *turntable
9.The point which describes the motion of the whole system or body is known as the:
*center of mass *inertia *centre of gravity *moment of inertia
10.The product of frequency and time period is:
*1 *2 *3 *4
11. When a transverse wave travelling through a rare medium is reflected from a dense medium, then phase change produced in it will be equal to:
*0° *90° *180° *360°
12. The gravitational constant was determined experimentally by:
*Newton *Einstein *Cavendish *Maxwell
13. A projectile is thrown upward with a certain velocity. Its time of flight will be minimum,if it is launched at an angle of:
*30° *45° *60° *75°
14.(i x j) . (j x i) is:
*-1 *k *1 *zero
15. Two forces of equal magnitude but opposite direction in direction and not acting along the same straight line form a:
*circle *couple *power *torque
16. If the time interval is very small (∆t→0), the rate of change of velocity of a body is called:
*Average acceleration *acceleration
*instantaneous acceleration *constant acceleration
17. Weber Fechner law is:
*I α Log L * L α Log I * I α 1/ Log L * I α Log L
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