Select the correct statements.
(i) A simple harmonic motion is necessarily periodic
(ii) A simple harmonic motion is necessarily oscillatory
(iii) An oscillatory motion is necessarily periodic
(iv) A periodic motion is necessarily oscillatory

Options

A. (i), (ii)
B. (i), (iii)
C. (ii), (iii)
D. (i), (iv)

Answer

A

Explanation

Due to damping, time period of oscillatory motion decreases.