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Question 19N.2.HL.TZ0.11a(i)

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Date November 2019 Marks available [Maximum mark: 2] Reference code 19N.2.HL.TZ0.11a(i)
Level HL Paper 2 Time zone TZ0
Command term Explain Question number a(i) Adapted from N/A
a(i).
[Maximum mark: 2]
19N.2.HL.TZ0.11a(i)

Monochromatic light of very low intensity is incident on a metal surface. The light causes the emission of electrons almost instantaneously. Explain how this observation

(a(i))

does not support the wave nature of light.

[2]

Markscheme

«low intensity light would» transfer energy to the electron at a low rate/slowly ✔
time would be required for the electron «to absorb the required energy» to escape/be emitted ✔

NOTE: OWTTE

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