Two coherent harmonic waves travelling on a string in same direction have amplitudes equal to 2.5 mm each. The resultant wave

Question

Two coherent harmonic waves travelling on a string in same direction have amplitudes equal to 2.5 mm each. The resultant wave has an amplitude of 3 mm. Find the phase difference between the two travelling waves.
37°
74°
53°
106°

Kunduz · Accepted Answer

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