DP Physics (last assessment 2024)
Question 19N.2.SL.TZ0.3c(i)
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.2.SL.TZ0.3c(i) |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | c(i) | Adapted from | N/A |
c(i).
[Maximum mark: 1]
19N.2.SL.TZ0.3c(i)
The solid line in the graph shows the variation with distance of the displacement 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.
(c(i))
State the number of all other points on the string that have the same amplitude and phase as X.
[1]
Markscheme
3 «points» ✔
