DP Physics (last assessment 2024)

Question 22M.1.HL.TZ1.30

Date	May 2022	Marks available	[Maximum mark: 1]	Reference code	22M.1.HL.TZ1.30
Level	HL	Paper	1	Time zone	TZ1
Command term		Question number	30	Adapted from	N/A

30.

[Maximum mark: 1]

22M.1.HL.TZ1.30

Light of wavelength $λ$ is diffracted after passing through a very narrow single slit of width $x$ . The intensity of the central maximum of the diffracted light is $I_{0}$ . The slit width is doubled.

What is the intensity of central maximum and the angular position of the first minimum?

[1]

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Examiners report

Option B was the most frequent (correct) selected by candidates. Interestingly, the more able candidates were distracted by option D, who were likely considering the intensity/amplitude relationship. As a result, this would be a good MC question for teaching purposes.

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Additional higher level (AHL)

Additional higher level (AHL) » Topic 9: Wave phenomena » 9.2 – Single-slit diffraction

Additional higher level (AHL) » Topic 9: Wave phenomena

Question 22M.1.HL.TZ1.30

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