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PhysicsWave OpticsPolarizationMedium2 minPYQ_2020
PhysicsMediumsingle choice

A polarizer - analyser set is adjusted such that the intensity of light coming out of the analyser is just36%of the original intensity. Assuming that the polarizer - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further, to reduce the output intensity to zero, issin-135=37°

Options:

Answer:
B
Solution:

I=I0cos2θ
0.36I0=I0cos2θ
cosθ=35

θ=53°
 
angle rotated should be =90o-53o=37o

Stream:JEESubject:PhysicsTopic:Wave OpticsSubtopic:Polarization
2mℹ️ Source: PYQ_2020

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