Two thin partially silvered glass plates are rigidly joined to form an angle 45
ID: 1622659 • Letter: T
Question
Two thin partially silvered glass plates are rigidly joined to form an angle 45 degree as shown in the figure. A short light pulse is incident on the structure as shown. The coefficient of reflection of light i.e. the fraction of light energy that is reflected by each surface is same and equal to p = 1/2. Select the correct statement(s): (A) force applied by light pressure makes an angle -45 degree with x-axis (B) force applied by light pressure makes an angle -tan^-1 (7/3) with x-axis (C) force applied by light pressure makes an angle -tan^-1 (8/5) with x-axis (D) Intensity of light reflected towards +x direction by plate is equal to 1/8 x intensity of incident light.Explanation / Answer
The correct statement is "Intensity of light reflected towards +x direction by plate is equal to 1/8x intensity of incident light."
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