Question

All oscillatory motions are necessarily periodic but all periodic motions are not oscillatory." Do you agree to this statement? Justify you answer.​

Answer 1

All oscillatory motions are periodic because each oscillations gets completed in a definite interval of time. ... Eg: Revolution of planets around the Sun is a periodic motion but not an oscillatory motion (i.e. no to and fro motion about its mean position is present).

hope us to help