| Date | November 2011 | Marks available | 1 | Reference code | 11N.1.HL.TZ0.29 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 29 | Adapted from | N/A |
Question
Light is shone onto the surface of a metal and photoelectrons are emitted. Which of the following changes of wavelength and intensity of the light will increase the maximum kinetic energy of the photoelectrons?
Markscheme
B
Examiners report
There were two correct responses to this question – B and D. Both were accepted. The intensity of the light has no effect on the distribution of the kinetic energies of the photoelectrons, only the wavelength.
Syllabus sections
Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.1 – The interaction of matter with radiation
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