| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ1.29 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 29 | Adapted from | N/A |
Question
Photoelectrons are emitted at a certain rate when monochromatic light is incident on a metal surface. Light of the same intensity but of higher frequency is now used. After this change, the rate of emission of electrons from the surface is
A. zero.
B. lower.
C. the same.
D. higher.
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.1 – The interaction of matter with radiation
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