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A polariser - 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 polariser - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further to reduce the output intensity to be zero, is
  • a)
    71.6°
  • b)
    90°
  • c)
    18.4°
  • d)
    45°
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A polariser - analyser set is adjusted such that the intensity of ligh...
Output intensity is given by I = I0 cos2 ()
Initial output intensity = 10% of Io  

Final output intensity = 0
New angle = 90°
The angle by which the analyser needs to be rotated further is 90° - θ = 18.4°
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A polariser - 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 polariser - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further to reduce the output intensity to be zero, isa)71.6°b)90°c)18.4°d)45°Correct answer is option 'C'. Can you explain this answer?
Question Description
A polariser - 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 polariser - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further to reduce the output intensity to be zero, isa)71.6°b)90°c)18.4°d)45°Correct answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A polariser - 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 polariser - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further to reduce the output intensity to be zero, isa)71.6°b)90°c)18.4°d)45°Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A polariser - 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 polariser - analyser set does not absorb any light, the angle by which the analyser needs to be rotated further to reduce the output intensity to be zero, isa)71.6°b)90°c)18.4°d)45°Correct answer is option 'C'. Can you explain this answer?.
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