If two waves of same frequency and amplitude respectively on superposition produce a resultant disturbance of same amplitude the waves differ in phase by

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Zero

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π/3

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2π/3

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Solution

The correct option is D
2π/3

$A^{2} = A^{2} + A^{2} + 2 A A c o s ϕ C o s ϕ = \frac{- 1}{2} ϕ = \frac{2 π}{3}$

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If two waves of same frequency and amplitude respectively on superposition produce a resultant disturbance of same amplitude the waves differ in phase by

The correct option is D 2π/3 A2=A2+A2+2AA cos ϕCos ϕ=−12ϕ=2π3

The correct option is D
2π/3

$A^{2} = A^{2} + A^{2} + 2 A A c o s ϕ C o s ϕ = \frac{- 1}{2} ϕ = \frac{2 π}{3}$