From Brewster's law, except for polished metallic surfaces, the polarising angle

Options

A. depends on wavelength and is different for different colours
B. independent of wavelength and is different for different colours
C. independent of wavelength and is same for different colours
D. depends on wavelength and is same for different colours

Answer

A

Explanation

`mu=tantheta`
`:.theta_(P)=tan^(-1)(mu)`
Thus `theta_(p)` depends on `muandmu` depends on `lamda`
`:.` Polarising angle depends depends on wavelength and it is different for different colours.