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?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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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