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Date November 2017 Marks available 1 Reference code 17N.1.HL.TZ0.39
Level Higher level Paper Paper 1 Time zone Time zone 0
Command term Question number 39 Adapted from N/A

Question

Monochromatic electromagnetic radiation is incident on a metal surface. The kinetic energy of the electrons released from the metal

A. is constant because the photons have a constant energy.

B. is constant because the metal has a constant work function.

C. varies because the electrons are not equally bound to the metal lattice.

D. varies because the work function of the metal is different for different electrons.

Markscheme

C

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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