| Date | November 2014 | Marks available | 1 | Reference code | 14N.1.HL.TZ0.32 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 32 | Adapted from | N/A |
Question
Three phenomena associated with nuclear and quantum physics are
I. Einstein photoelectric effect
II. de Broglie hypothesis
III. Rutherford alpha particle scattering.
Which of the phenomena can be verified by firing electrons at a metal surface?
A. I only
B. II only
C. I and III only
D. II and III only
Markscheme
B
Examiners report
The most popular responses were A and C, both of which are incorrect. One can only assume that the candidates did not read the question with sufficient care and, on seeing the words “metal” and “electrons”, automatically assumed the photoelectric effect was involved.
Syllabus sections
Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.1 – The interaction of matter with radiation
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