2024TrialMultiple choice

Q11

1 mark

Question

At what angle, $\theta$ , should two polaroid sheets be placed to reduce the intensity by ninety percent?
A. $\theta=\cos^{-1}\sqrt{0.8}$
B. $\theta=\cos^{-1}\sqrt{0.2}$
C. $\theta=\cos^{-1}\sqrt{0.9}$
D. $\theta=\cos^{-1}\sqrt{0.1}$

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Syllabus alignment

Module 7 · The Nature of Light

Light: Wave ModelApply Malus's law to plane polarisation and evaluate its significance for the wave model.

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