When two progressive waves y 1 = 4 sin ( 2 x − 6 t ) and y 2 = 3 sin ( 2 x − 6 t − 2 π ) are superimposed, the amplitude of the resultant wave is

Question

When two progressive waves y 1 ​ = 4 sin ( 2 x − 6 t ) and y 2 ​ = 3 sin ( 2 x − 6 t − 2 π ​ ) are superimposed, the amplitude of the resultant wave is

TestHub · Accepted Answer

Phase difference between the two waves is 9 0 ∘ . Amplitudes are added by vector method. ∴ Answer is 5 .

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