Question

9.
The equation of S.H.M. is
$y = \sin ^{2} (2\pi\: nt \: + \alpha )$
then
its phase at time t is :-
(1) 2πnt
(2) 4πnt
(3)
$2\pi \: nt \: + \alpha$

(4)
$4\pi \: nt \: + \alpha$
​

Answer 1

I hope it is helpful for you