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A progressive sound wave of equation Y1=...

A progressive sound wave of equation `Y_1=4sin20pi(30t-x/lambda)` produces 10 beats per sec with another wave. The equation of the other wave is

A

`Y_2=4sin20pi(32t-x/lamda)`

B

`Y_2=4sin20pi(28t-x/lamda)`

C

`Y_2=4sin20pi(31t-x/lamda)`

D

`Y_2=4sin20pi(31t+x/lamda)`

Text Solution

Verified by Experts

The correct Answer is:
C
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