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Question 21M.1.HL.TZ1.28

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.HL.TZ1.28
Level HL Paper 1 Time zone TZ1
Command term Question number 28 Adapted from N/A
28.
[Maximum mark: 1]
21M.1.HL.TZ1.28

Light is incident on a diffraction grating. The wavelength lines 600.0 nm and 601.5 nm are just resolved in the second order spectrum. How many slits of the diffraction grating are illuminated?

A. 20

B. 40

C. 200

D. 400

[1]

Markscheme

C

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