DP Physics (last assessment 2024)
Question 23M.2.HL.TZ2.8a
| Date | May 2023 | Marks available | [Maximum mark: 2] | Reference code | 23M.2.HL.TZ2.8a |
| Level | HL | Paper | 2 | Time zone | TZ2 |
| Command term | Outline | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 2]
23M.2.HL.TZ2.8a
(a)
Outline why the light reflected to the girl has one wavelength missing.
[2]
Markscheme
There is «partial» reflection at the front surface of the layer and also at the glass-layer interface ✓
destructive interference «between these reflections occurs at the missing wavelength» ✓
