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Question

(A) According to Brewster's Law,when unpolarized light is incident at the polarizing angle $i_p$ on a transparent medium,the reflected light is comple

Vedclass · Accepted Answer

The reflected beam is completely polarized

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(A) According to Brewster's Law,when unpolarized light is incident at the polarizing angle $i_p$ on a transparent medium,the reflected light is completely plane-polarized.At this angle,the reflected ray and the refracted ray are perpendicular to each other,which implies $i_p + r = 90^{\circ}$,where $r$ is the angle of refraction.Using Snell's Law,$\mu = \frac{\sin i_p}{\sin r} = \frac{\sin i_p}{\sin(90^{\circ} - i_p)} = \frac{\sin i_p}{\cos i_p} = 	an i_p$.Therefore,$	an i_p = \mu$,which means option $A$ is correct.

An unpolarized light is incident from air on the boundary of a denser medium having refractive index $\mu$ at polarizing angle $i_p$. Which of the following is correct?

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