A) Both the waves are coherent
B) Both the waves are incoherent
C) Both the waves have different time periods
D) None of the above
Correct Answer: A
Solution :
\[{{y}_{2}}=3\cos \omega t=3\sin \left( \frac{\pi }{2}+\omega t \right)\] So, the phase difference between them is \[\frac{\pi }{2},\]which remains constant with time, so they behave as coherent sources. Hence, the correction option is [a].You need to login to perform this action.
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