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Solution


Q.

Two simple harmonic waves having equal amplitudes of 8 cm and equal frequency of 10 Hz are moving along the same direction. The resultant amplitude is also 8 cm. The phase difference between the individual waves is ______ degree.                  [2023]

Ans.

(120)

2Acos(Δϕ2)=A

cos(Δϕ2)=12⇒Δϕ2=60°