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Physics (AS & A Level) · Oct / Nov 2024 · Paper 12 · Question 23

9702Polarisation

A horizontal beam of vertically polarised light of amplitude A is incident normally on a polarising filter. The transmission axis of the filter is at an angle of 50° to the vertical. What is the amplitude of the light in the beam after it has passed through the filter?

  1. A0.17A
  2. B0.41A
  3. C0.64A
  4. D0.80A

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Correct answer: C. 0.64A

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