Physics (AS & A Level) · May / June 2021 · Paper 11 · Question 26

The diagram shows part of a stationary wave on a string. X and Y are points on the string. The vibrations at X and Y are 180° out of phase. What is the distance between X and Y?

1. Aone-quarter of a wavelength
2. Bhalf a wavelength
3. Cone wavelength
4. Dtwo wavelengths

As printed in the paper