| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ1.15 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 15 | Adapted from | N/A |
Question
The graph below shows the variation of the intensity of light with angle for the diffraction pattern produced when light is diffracted by a slit.
According to the Rayleigh criterion, when the diffraction patterns of two slits are just resolved
A. the first maximum of one diffraction pattern coincides with the central maximum of the other diffraction pattern.
B. the central maximum of one diffraction pattern coincides with the central maximum of the other diffraction pattern.
C. the first minimum of one diffraction pattern coincides with the central maximum of the other diffraction pattern.
D. the first minimum of one diffraction pattern coincides with the first minimum of the other diffraction pattern.
Markscheme
C
Examiners report
[N/A]
