Sunlight (unpolarised light) is reflected from Liverpool's Canning half-tide dock on a day where the water's surface is smooth and still. The water is salty, with a refractive index of 1.36. (i) For what angle of incidence is the reflected light completely polarised (Brewster angle)? (ii) At this incidence angle, what is the corresponding angle of refraction? (iii) How would your answers change if the sea water was replaced with fresh water?

Sunlight (unpolarised light) is reflected from Liverpool's Canning half-tide dock on a day where the water's surface is smooth and still. The water is salty, with a refractive index of 1.36. (i) For what angle of incidence is the reflected light completely polarised (Brewster angle)? (ii) At this incidence angle, what is the corresponding angle of refraction? (iii) How would your answers change if the sea water was replaced with fresh water?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter38: Diffraction Patterns And Polarization

Section: Chapter Questions

Problem 38.44P: The angle of incidence of a light beam onto a reflecting surface is continuously variable. The...

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Question

4. Sunlight (unpolarised light) is reflected from Liverpool's Canning half-tide
dock on a day where the water's surface is smooth and still. The water is
salty, with a refractive index of 1.36.
(i) For what angle of incidence is the reflected light completely polarised
(Brewster angle)?
(ii) At this incidence angle, what is the corresponding angle of refraction?
(iii) How would your answers change if the sea water was replaced with
fresh water?

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