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Two waves of the same frequency and same...

Two waves of the same frequency and same amplitude 'a' are reaching a point simultaneously. What should be the phase difference between the waves so that the amplitude of the resultant wave be :
(i) 2a (ii) `sqrt2a` (iii) a (iv) zero.

Text Solution

Verified by Experts

`a_R =2a "cos" phi/2`
(i) For `a_R= 2a, phi=0^@`
`(ii) For `a_R = sqrt(2a), phi = 90^@` etc.
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