A sound made on the surface of a lake takes 3 s to reach a boatman.
How much time will it take to reach a diver inside the water at the same depth ?
Velocity of sound in air = `330 ms^(-1)`
Velocity of sound in water = `1450 ms^(-1)`

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the distance from the source of sound to the boatman.
The sound takes 3 seconds to reach the boatman, and the velocity of sound in air is given as 330 m/s.

Using the formula:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]

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