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Question 21M.1.SL.TZ2.14

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.SL.TZ2.14
Level SL Paper 1 Time zone TZ2
Command term Question number 14 Adapted from N/A
14.
[Maximum mark: 1]
21M.1.SL.TZ2.14

Unpolarized light of intensity I1 is incident on a polarizer. The light that passes through this polarizer then passes through a second polarizer.

  

The second polarizer can be rotated to vary the intensity of the emergent light. What is the maximum value of the intensity emerging from the second polarizer?

A.  I14

B.  I12

C.  2I13

D.  I1

[1]

Markscheme

B