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Two sound waves having a phase difference of 60° have path difference of

Asked in NEET 1996 · Interference of two waves

Answer: (1) λ/6

Step-by-step solution

Idea: one whole wavelength of path corresponds to 2π of phase, and the two are simply proportional.

Δφ=(2π)/λ Δ x, so Δ x=λ/(2π)Δφ.

60°=π/3 radians.

Δ x=λ/(2π)×π/3.

Δ x=λ/6.

Why the other options are wrong

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