Optics Question 1042
Question: Two waves are represented by the equations $ y _{1}=a\sin \omega t $ and $ y _{2}=a\cos \omega t. $ The first wave
[MP PMT 2001]
Options:
A) Leads the second by p
B) Lags the second by p
C) Leads the second by $ \frac{\pi }{2} $
D) Lags the second by $ \frac{\pi }{2} $
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Answer:
Correct Answer: D
Solution:
$ y _{1}=a\sin \omega t,\ y _{2}=a\cos \omega t=a\sin ( \omega t+\frac{\pi }{2} ) $
