A. 105 dyne
B. 106 dyne
C. 107 dyne
D. 981 dyne
0
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to____________________?
0
At the instantaneous center, the velocity of the moving lamina at any instant is_________________?
A. log r
B. r
C. r2
D. 1/r
where r is the distance of’the particle from centre of the earth
0
Which of the following represents the state of neutral equilibrium ?
A. zero
B. maximum
C. minimum
D. varying
0
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is___________________?
A. a cube resting on one edge
B. a smooth cylinder lying on a curved surface
C. a smooth cylinder lying on a convex surface
D. none of the above
0
A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be___________________?
A. a simple harmonic motion
B. a rectilinear motion with constant speed
C. a damped oscillatory motion
D. none of the above
0
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to_________________?
A. E
B. E/2
C. 2E
D. 4E
0
It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to_________________?
A. A
B. A/2
C. A/V2
D. AV2
0
A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is___________________?
A. f
B. 1/f
C. 1/f2
D. f2
0
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________?
A. 4.5 J
B. 9.0 J
C. 12.0 J
D. 18.0 J
Download App