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:

Optics: JEE Main 2020 Physics question

JEE Main 2020 · 4 Sep, Morning shift · Q8463

JEE Main 20204 Sep, Morning shiftPhysicsMediumOptics190× since 2002

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 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 :

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JEE Main 2020 Optics Question with Solution (4 Sep Morning shift, Q8463) | JEE Arc