Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 27

The diagram shows a steel wire clamped at one end. The other end is attached to a weight hanging over a pulley. A vibrator is attached to the wire near the clamped end. A stationary wave with one loop is produced. The frequency of the vibrator is f. Which frequency should be used to produce a stationary wave with two loops?

1. A\frac{f}{4}
2. B\frac{f}{2}
3. C2f
4. D4f

As printed in the paper