Class XI Physics Oscillations 1

Three S.H.M. of equal amplitude A and equal time period in the same direction combine. The difference in phase between each pair is 60 ° ahead of the other. The amplitude of the resultant oscillation is –

For a particle executing simple harmonic motion, the correct variation of acceleration a with displacement x is given by

A mass M is suspended from a spring of negligible mass. The spring is pulled is a little and then released so that the mass executes simple harmonic oscillations with a time-period T. If the mass is increased by m, then the time period becomes . The ratio of (m/M) is -

Two S.H.M’s of unequal amplitude with same frequency (act) on a particle at right angles, with a phase difference of π/2. The resultant motion is –

A solid sphere (M) attached to a massless spring (K) can roll without slipping along a horizontal surface. If the system is released after an initial stretch, the time period will be–

The pendulum of the grandfather’s clock takes 1 sec to oscillate from one end to another a distance of 10 cms. Considering it a simple pendulum, find its maximum velocity-