A submarine emits a sonar pulse of sound towards the seabed. The echo from the seabed is detected by the submarine 0.20 s after the pulse was sent. The seabed is at a distance of 160 m directly below the submarine. What is the speed of the sound wave in this water?
16 m/s16\text{ m/s}16 m/s
800 m/s800\text{ m/s}800 m/s
1600 m/s1600\text{ m/s}1600 m/s
3200 m/s3200\text{ m/s}3200 m/s
295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.