A spectator sees a fireworks explosion in the night sky and hears the bang 2.4 seconds2.4\text{ seconds}2.4 seconds later. The sound and the light flash are produced at the same instant. The spectator is located at a distance of 816 metres816\text{ metres}816 metres from where the firework exploded. (Assume the travel time of light is negligible.)
What is the speed of sound calculated from this observation?
196 m/s196\text{ m/s}196 m/s
340 m/s340\text{ m/s}340 m/s
510 m/s510\text{ m/s}510 m/s
1958 m/s1958\text{ m/s}1958 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.