An unpolarized light beam travelling in air i | vedclass

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(A) When unpolarized light is incident on a medium of refractive index $\mu = 1.73$ at Brewster's angle $(i_p)$,the reflected light is completely pola

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reflected light is completely polarized and the angle of reflection is close to $60^{\circ}$

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(A) When unpolarized light is incident on a medium of refractive index $\mu = 1.73$ at Brewster's angle $(i_p)$,the reflected light is completely polarized.According to Brewster's Law:$\mu = 	an(i_p)$$1.73 = 	an(i_p)$Since $	an(60^{\circ}) = \sqrt{3} \approx 1.732$,we have $i_p = 60^{\circ}$.By the law of reflection,the angle of reflection $r$ is equal to the angle of incidence $i_p$,so $r = 60^{\circ}$.Thus,the reflected light is completely polarized and the angle of reflection is $60^{\circ}$.

An unpolarized light beam travelling in air is incident on a medium of refractive index $1.73$ at Brewster's angle. Then

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