A) \[\frac{T}{2}\]
B) \[\frac{T}{3}\]
C) \[\frac{T}{4}\]
D) \[\frac{T}{6}\]
Correct Answer: D
Solution :
\[x=A\,\,\cos \omega t\] but \[x=\frac{A}{2}\] so \[\frac{A}{2}=A\,\cos \frac{2\pi }{T}\,t\] \[\Rightarrow \]\[\frac{2\pi }{T}\,t=\frac{\pi }{3}\Rightarrow t=\frac{T}{6}\]You need to login to perform this action.
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