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Question 17N.1.HL.TZ0.39

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.HL.TZ0.39
Level HL Paper 1 Time zone TZ0
Command term Question number 39 Adapted from N/A
39.
[Maximum mark: 1]
17N.1.HL.TZ0.39

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.

[1]

Markscheme

C

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