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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2017
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Two Polaroids $P_1$ and $P_2$ are placed with their axis perpendicular to each other. Unpolarised light $I_0$ is incident on $P_1$. A third polaroid $P_3$ is kept in between $P_1$ and $P_2 $ such that its axis makes an angle 45º with that of $P_1$. The intensity of transmitted light through $P_2$ is


( A ) $\frac{I_0}{8}$
( B ) $\frac{I_0}{2}$
( C ) $\frac{I_0}{4}$
( D ) $\frac{I_0}{16}$

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