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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEP
Chapter
Ray Optics

Olympiad workbook · NSEP · Ray Optics

Arectangular slab of glass of refractive index 1.5 is immersed in...

Arectangular slab of glass of refractive index 1.5 is immersed in water of refractive index 1.33 such that the top surface of the slab remains parallel to water level. Light from a point source in air is incident on the surface of water at an angle α\alpha such that the light reflected from the glass slab is plane polarised, the angle α\alpha is

Options

  1. A84.4∘84.4^{{}^{{}^{\circ}}}
  2. B48.4∘48.4^{{}^{{}^{\circ}}}
  3. C56.3∘56.3^{{}^{{}^{\circ}}}
  4. D53.1∘53.1^{{}^{{}^{\circ}}}

Correct answer

A. 84.4∘84.4^{{}^{{}^{\circ}}}

Step-by-step solution

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