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Polarization By Reflection And Brewster's Law - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

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The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index, n), is

 

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Polarization of light by reflection

 Brewster’s law- 

Brewster discovered that when a beam of unpolarized light is reflected from a transparent medium (refractive index $=\mu$ ), the reflected light is completely plane polarised at a certain angle of incidence (called the angle of polarisation i.e $\theta_p$ ).

And also $\mu=\tan \theta_p$.
i.e For $i=\theta_P$
reflected rays will be completely polarised.
For $i<\theta_P$ or $i>\theta_P$
reflected rays will be partially polarised.

 

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Polarization of light by reflection

Physics Part II Textbook for Class XI

Page No. : 381

Line : 2

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