DP Physics (last assessment 2024)
Question 22M.1.SL.TZ1.15
Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.SL.TZ1.15 |
Level | SL | Paper | 1 | Time zone | TZ1 |
Command term | Question number | 15 | Adapted from | N/A |
15.
[Maximum mark: 1]
22M.1.SL.TZ1.15
An interference pattern with minima of zero intensity is observed between light waves. What must be true about the frequency and amplitude of the light waves?
[1]
Markscheme
C
Examiners report
This question was generally well answered by SL candidates with both a high difficulty and discrimination index. Candidates who selected an incorrect answer seems more certain about the correct amplitude than the resulting intensity.