(i)  | (ii)  |
(iii)  | (iv)  |
A) (i), (ii) and (iii)
B) (ii) only
C) (i), (iii) and (iv)
D) (iii) only
Correct Answer: B
Solution :
Only (ii) shows the periodic as well as oscillatory motion. It is showing to and fro as well as motion which is repeating after regular time interval.
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