A beam of plane polarised light of large cross sectional area and uniform intensity of 3.3 {Wm}^{-2} falls normally on a polariser (cross sectional area 3 \\times 10^{-4} {m}^{2} ) which rotates about its axis with an angular speed of 31.4 {rad} \/ {s} . The energy of light passing through the polariser per revolution, is close to : [4 Sep 2020 Shift 1]

Correct Answer is : 5.0×10−4 J

JEE Mains 04-Sep-2020 Shift 1 Solved Paper

Section: Physics

Question : 1 of 75

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A beam of plane polarised light of large cross sectional area and uniform intensity of 3.3 Wm−2 falls normally on a polariser (cross sectional area 3×10−4 m2 ) which rotates about its axis with an angular speed of 31.4 rad∕s .
The energy of light passing through the polariser per revolution, is close to :

[4 Sep 2020 Shift 1]

1.0×10−5 J
5.0×10−4 J
1.0×10−4 J
1.5×10−4 J

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