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Question 21M.1.HL.TZ2.27

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.HL.TZ2.27
Level HL Paper 1 Time zone TZ2
Command term Question number 27 Adapted from N/A
27.
[Maximum mark: 1]
21M.1.HL.TZ2.27

Light passes through a diffraction grating. Which quantity must be decreased to improve the resolution of the diffraction grating?

A. The grating spacing

B. The number of grating lines illuminated by the light source

C. The number of grating lines per millimetre

D. The spectral order being observed

[1]

Markscheme

A

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