Question

3. The sound of an explosion on the surface of a lake
is heard by a boat man 100 m away and by a diver
100 m below the point of explosion.
(1) Who would hear the sound first : boat man or
diver?
(ii) Give a reason for your answer in part (1).
iii) If sound takes time t to reach the boat man, how
much time approximately does it take to reach the
diver?​

Answer 1

Answer:

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Step-by-step explanation:

Sound travels faster in liquid than in gas. Thus the diver will hear the explosion first.

Answer 2

Answer:1.The diver will hear the sound first

2.Because sound travels faster in water than air

3.Time f