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The sound of an explosion on the surface of lake is heard by a boatman $100 m$ away and a driver $100 m$ below the point of explosion. Who would hear the sound of explosion first?

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Boatman

Driver

Both boatman and driver

None of them

answer is B.

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Detailed Solution

The driver will hear the sound of the explosion first.
If both the boatman and driver are

100 m

distance from the point of explosion. The driver will hear the sound of the explosion first, then after, the boatman will hear the sound of the explosion as we know that sound travels faster in water than in the air.

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