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Question 18N.2.HL.TZ0.4a.i

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.2.HL.TZ0.4a.i
Level HL Paper 2 Time zone TZ0
Command term Sketch Question number a.i Adapted from N/A
a.i.
[Maximum mark: 1]
18N.2.HL.TZ0.4a.i

A pipe is open at both ends. A first-harmonic standing wave is set up in the pipe. The diagram shows the variation of displacement of air molecules in the pipe with distance along the pipe at time t = 0. The frequency of the first harmonic is f.

(a.i)

Sketch, on the diagram, the variation of displacement of the air molecules with distance along the pipe when t =  3 4 f .

[1]

Markscheme

horizontal line shown in centre of pipe ✔

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