Four light sources produce the following four waves:
y₁ = a' sin (ωt + ϕ₁)
y₂ = a' sin (2ωt)
y₃ = a' sin (ωt + ϕ₂)
y₄ = a' sin (3ωt + ϕ)
Superposition of which two waves give rise to interference?

Question

Four light sources produce the following four waves:

y₁ = a' sin (ωt + ϕ₁)
y₂ = a' sin (2ωt)
y₃ = a' sin (ωt + ϕ₂)
y₄ = a' sin (3ωt + ϕ)

Superposition of which two waves give rise to interference?

TestHub · Accepted Answer

Interference phenomenon takes place between two waves which

have equal frequency and propagate in same direction.

Hence, y₁= a sin (ωt + ϕ₁)

y₃= a' sin (ωt + ϕ₂)

will give rise to interference as the two waves have same frequency ω.

Physics - Wave Optics Question with Solution | TestHub

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