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For a glass surface, the value of polarizing angle is _________

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For a glass surface, the value of polarizing angle is _________

(a) 45.7°

(b) 52.7°

(c) 57.5°

(d) 67.8°

I have been asked this question in examination.

My enquiry is from Production of Plane Polarised Light topic in chapter Polarisation of Engineering Physics II

1 Answer

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The correct answer is (c) 57.5°

The explanation is: Polarizing angle is the angle for which the reflected light would be completely plane polarized. For glass, it is 57.5°. Thus, if a light is incident on glass at 57.5° the reflected light would be completely polarized.

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