A beam of plane polarized light falls normally on a polarizer (cross-sectional area 3×10−4 m2) which rotates about the axis of the ray with an angular velocity of 31.4 rad/s. Find the energy of light E passing through the polarizer per revolution and the intensity Iavg of the emergent beam if the flux of energy of the incident ray is 10−3 W.

A beam of plane polarized light falls normally on a polarizer (cross-s

1.	A beam of plane polarized light falls normally on a polarizer (cross-sectional area 3×10−4 m2) which rotates about the axis of the ray with an angular velocity of 31.4 rad/s. Find the energy of light E passing through the polarizer per revolution and the intensity Iavg of the emergent beam if the flux of energy of the incident ray is 10−3 W.
Answer» A beam of plane polarized light falls normally on a polarizer (cross-sectional area $3 \times 10^{- 4} m^{2}$ ) which rotates about the axis of the ray with an angular velocity of $31.4 rad/s$ . Find the energy of light $E$ passing through the polarizer per revolution and the intensity $I_{a v g}$ of the emergent beam if the flux of energy of the incident ray is $10^{- 3} W$ .

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