A) \[1s\]
B) \[2s\]
C) \[\frac{1}{3}s\]
D) \[\frac{2}{3}s\]
Correct Answer: C
Solution :
\[y=A\,\,\sin \left( \frac{2\pi }{T} \right)t\] \[\Rightarrow \] \[\frac{A}{2}=A\,\,\sin \left( \frac{2\pi }{4} \right)t\] \[\Rightarrow \] \[\frac{\pi t}{2}=\frac{\pi }{6}\Rightarrow \,t=\frac{1}{3}s\]You need to login to perform this action.
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