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Date November 2017 Marks available 1 Reference code 17N.1.HL.TZ0.12
Level Higher level Paper Paper 1 Time zone 0 - no time zone
Command term Question number 12 Adapted from N/A

Question

Unpolarized light of intensity I0 is incident on a polarizing filter. Light from this filter is incident on a second filter, which has its axis of polarization at 30˚ to that of the first filter.

The value of cos 30˚ is 3 2 . What is the intensity of the light emerging through the second filter?

A.  3 2 I0

B.  3 2 I0

C.  3 4 I0

D.  3 8 I0

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 3: Thermal physics » 3.2 – Modelling a gas
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