DP Physics (last assessment 2024)

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Question 21M.2.SL.TZ2.5b.ii

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.SL.TZ2.5b.ii
Level SL Paper 2 Time zone TZ2
Command term Draw Question number b.ii Adapted from N/A
b.ii.
[Maximum mark: 1]
21M.2.SL.TZ2.5b.ii

A vertical tube, open at both ends, is completely immersed in a container of water. A loudspeaker above the container connected to a signal generator emits sound. As the tube is raised the loudness of the sound heard reaches a maximum because a standing wave has formed in the tube.

(b.ii)

The tube is raised until the loudness of the sound reaches a maximum for a second time.

Draw, on the following diagram, the position of the nodes in the tube when the second maximum is heard.

[1]

Markscheme

nodes shown at water surface AND 23way up tube (by eye) ✓


Accept drawing of displacement diagram for correct harmonic without nodes specifically identified.

Award [0] if waveform is shown below the water surface

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