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+1 vote
57.9k views
in Physics by (36.3k points)

A polarizer - analyser set is adjusted such that the intensity of light coming out of the analyser is just 10% of the original intensity. Assuming that the polarizer - analyser set does not absorb any light, the angle by which the analyser need to be rotated further to reduce the output intensity to be zero, is :

(1) 18.4°

(2) 71.6°

(3) 90° 

(4) 45° 

2 Answers

+2 votes
by (33.0k points)
selected by
 
Best answer

Answer is (1) 18.4°

θ = 63.44°

angle rotated = 90 – 63.44° = 26.56° 

Closest is 1

+1 vote
by (51.9k points)

Answer is (1) 18.4°

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