DP Physics (last assessment 2024)

Test builder »

Question 19N.2.SL.TZ0.c(ii)

Select a Test
Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.2.SL.TZ0.c(ii)
Level SL Paper 2 Time zone TZ0
Command term Draw Question number c(ii) Adapted from N/A
c(ii).
[Maximum mark: 1]
19N.2.SL.TZ0.c(ii)

The solid line in the graph shows the variation with distance x of the displacement y of a travelling wave at t = 0. The dotted line shows the wave 0.20 ms later. The period of the wave is longer than 0.20 ms.

One end of a string is attached to an oscillator and the other is fixed to a wall. When the frequency of the oscillator is 360 Hz the standing wave shown is formed on the string.

Point X (not shown) is a point on the string at a distance of 10 cm from the oscillator.

The frequency of the oscillator is reduced to 120 Hz. On the diagram, draw the standing wave that will be formed on the string.

[1]

Markscheme

first harmonic mode drawn ✔

NOTE: Allow if only one curve drawn, either solid or dashed.

Syllabus sections