| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ2.15 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 15 | Adapted from | N/A |
Question
Green light is emitted by two point sources. The light passes through a narrow slit and is received by an observer. The images of the two sources just fail to be resolved. Which change allows for the images to be resolved?
A. Replacing the narrow slit with a circular aperture of same size.
B. Moving the two sources further from the aperture.
C. Using red light.
D. Using violet light.
Markscheme
D
Examiners report
[N/A]
