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Question 21N.1.HL.TZ0.29

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1.HL.TZ0.29
Level HL Paper 1 Time zone TZ0
Command term Question number 29 Adapted from N/A
29.
[Maximum mark: 1]
21N.1.HL.TZ0.29

A beam of light containing two different wavelengths is incident on a diffraction grating. The wavelengths are just resolved in the third order of diffraction.

What change increases the resolution of the image?


A.  Increasing the width of the incident beam

B.  Increasing the intensity of light

C.  Decreasing the number of lines per unit length in the diffraction grating

D.  Decreasing the order of diffraction

[1]

Markscheme

A

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