Physics (AS & A Level) · May / June 2025 · Paper 11 · Question 16

A submarine is at a depth of 130 m below the surface of the sea. The pressure on the submarine due to the sea water is p. The submarine sinks to a depth of 260 m below the surface. Assume that the density of sea water is constant. What is the difference between the pressures on the submarine due to the sea water at the two depths?

1. A0
2. B0.5p
3. Cp
4. D2p

As printed in the paper