| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.HL.TZ2.37 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 37 | Adapted from | N/A |
Question
A photoelectric cell is connected in series with a battery of emf 2 V. Photons of energy 6 eV are incident on the cathode of the photoelectric cell. The work function of the surface of the cathode is 3 eV.
What is the maximum kinetic energy of the photoelectrons that reach the anode?
A. 1 eV
B. 3 eV
C. 5 eV
D. 8 eV
Markscheme
A
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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