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Question 19N.2.HL.TZ0.b(ii)

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

In an experiment to demonstrate the photoelectric effect, light of wavelength 480 nm is incident on a metal surface.

The graph shows the variation of the current I in the ammeter with the potential V of the cathode.

The intensity of the light incident on the surface is reduced by half without changing the wavelength. Draw, on the graph, the variation of the current I with potential V after this change.

[2]

Markscheme

similar curve lower than original ✔

with same horizontal intercept ✔

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