CAPE Physics Unit 1 · 2008 (T&T) · Paper 1 · Question Q27

At a distance 20\text{ m} from a small loudspeaker, the amplitude of the sound heard is 0.012\text{ mm}. At a distance 40\text{ m} from the loudspeaker, the amplitude in mm is

1. (A)0.003\text{ mm}
2. (B)0.006\text{ mm}
3. (C)0.012\text{ mm}
4. (D)0.024\text{ mm}