CAPE Physics Unit 1 · 2011 · Paper 1 · Question Q29

The amplitude of a wave is increased from 4\text{ m} to 6\text{ m}. What is the change in intensity of the wave?

1. (A)0.35\text{ dB}
2. (B)1.76\text{ dB}
3. (C)2.0\text{ dB}
4. (D)3.5\text{ dB}