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State Brewster's Law The value of B...

State Brewster's Law
The value of Brewster angle for a transparent medium is different for light of different colours .
Give reason.

Text Solution

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When unpolarized light is incident at polarizing angle ip on an interface separating air and medium of refractive index `mu ` then the reflected light is fully polarized provided `mu =` tan ip
Because for different wavelengths value of`mu ` will be different so value of `ip` change accordingly .
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