Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 24

A string is fixed at one end and the other end is attached to a vibrator. The frequency of the vibrator is slowly increased from zero. A series of stationary waves is formed. Assume that for a stationary wave there is a node at point P. What are the first five wavelengths of the stationary waves that could be formed?

1. A2L/1, 2L/2, 2L/3, 2L/4, 2L/5
2. B2L/2, 2L/3, 2L/4, 2L/5, 2L/6
3. C4L/1, 4L/2, 4L/3, 4L/4, 4L/5
4. D4L/1, 4L/3, 4L/5, 4L/7, 4L/9

As printed in the paper