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Question

# Match the column I and column II correctly. Column I Column II (A) Interference of light (p) I=I0cos2θ (B) Brewster's law (q) Obstacle/aperature size ≈λ (C) Diffraction of light (r) μ=tanip (D) Law of Malus (s) Coherent sources

A
Ar, Bs, Cq, Dp
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B
Ap, Bq, Cr, Ds
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C
As, Br, Cp, Dq
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D
As, Br, Cq,Dp
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Solution

## The correct option is D A−s, B−r, C−q,D−p(1) The sources must be coherent for interference of light to take place. So, (A) matches with (s). (2) According to Brewster's law μ=tanip. So, (B) matches with (r). (3) Diffraction only occurs when the size of aperture or obstacle is comparable to the wavelength of light. So, (C) matches with (q). (4) According to law of malus, I=I0cos2θ So, (D) matches with (p). Hence, option (D) is correct.

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