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Question 19N.1.HL.TZ0.39

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1.HL.TZ0.39
Level HL Paper 1 Time zone TZ0
Command term Question number 39 Adapted from N/A
39.
[Maximum mark: 1]
19N.1.HL.TZ0.39

Three observations of the behaviour of electrons are

I.   electron emission as a result of the photoelectric effect
II.  electron diffraction as an electron interacts with an atom
III. emission of radio waves as a result of electrons oscillating in a conductor.

Which observations are evidence that the electron behaves as a particle?

 

A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

B