The drawing shoes a ship 800 m from a cliff. A gun is fired on the ship. After 5 seconds the people at the front of the ship hear the sound of the gun again.
(a) What is the name of this effect?
(b) What happens to the sound at the cliff?
(c) How far foes the sound travel in 5 seconds?
(d) Calculate the speed of sound.
(a) The name of this effect is echo.
(b) Sound get reflected at the clif.
(c) In 5 seconds sound goes upto 1600 m.
(d) The speed of sound is 320 m/s.