DP Physics (last assessment 2024)

Question 21N.2.SL.TZ0.3c.iii

Date	November 2021	Marks available	[Maximum mark: 1]	Reference code	21N.2.SL.TZ0.3c.iii
Level	SL	Paper	2	Time zone	TZ0
Command term	Draw	Question number	c.iii	Adapted from	N/A

c.iii.

[Maximum mark: 1]

21N.2.SL.TZ0.3c.iii

A standing sound wave is established in a tube that is closed at one end and open at the other end. The period of the wave is $T$ . The diagram represents the standing wave at $t = 0$ and at $t = \frac{T}{8}$ . The wavelength of the wave is 1.20 m. Positive displacements mean displacements to the right.

(c.iii)

Draw on the diagram the standing wave at time $t = \frac{T}{4}$ .

[1]

Markscheme

horizontal line drawn at the equilibrium position ✓

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Core

Core » Topic 4: Waves » 4.5 – Standing waves

Core » Topic 4: Waves

Question 21N.2.SL.TZ0.3c.iii

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