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Two wave are represented by the equation...

Two wave are represented by the equations `y_(1)=asinomegat` ad `y_(2)=acosomegat` the first wave

A

leads the second by `pi`

B

lags the second by `pi`

C

leads the second by `(pi)/(2)`

D

lags the second by `(pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`y_(1) = a sin omega t`
`y_(2) = a cos omega t = a sin(omega t + pi//2)`
`y_(1)` lags `y_(2)` behind by phase `(pi)/(2)`
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