In the Young's double-slit experiment, the intensity of light at a point on the screen where the path difference is λ is K, (λ being the wave length of light used). The intensity at a point where the path difference is λ/4 will be :

Question

Dr. Abubacker · Accepted Answer

[Solution] $I = K\cos^2(\phi/2)$; path difference λ/4 gives φ = π/2, so I = K cos²45° = K/2. Answer (3).

Q. In the Young's double-slit experiment, the intensity of light at a point on the screen where the path difference is λ is K, (λ being the wave length of light used). The intensity at a point where the path difference is λ/4 will be :

Explanation

Reviewed by Dr. Abubacker

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