Physics (AS & A Level) · Oct / Nov 2020 · Paper 13 · Question 22

Two waves X and Y have the same frequency. The amplitude of X is 1.5A_0 and the amplitude of Y is 2.5A_0. The waves meet at a point and superpose to form a resultant wave. For the resultant wave, what is the ratio \frac{\text{maximum possible intensity}}{\text{minimum possible intensity}}?

1. A1.7
2. B2.8
3. C4.0
4. D16

As printed in the paper