| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.HL.TZ0.12 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| 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 \(\frac{{\sqrt 3 }}{2}\). What is the intensity of the light emerging through the second filter?
A. \(\frac{{\sqrt 3 }}{2}\)I0
B. \(\frac{3}{2}\)I0
C. \(\frac{3}{4}\)I0
D. \(\frac{3}{8}\)I0
Markscheme
D
Examiners report
[N/A]
