Solve the given problem:
At a time when it is cloudy, there may be frequent thunder and lightning. The sound of thunder takes some time to reach you after you see the lightning. Measure this time interval using a digital wristwatch or a stopwatch (Suppose, t = 21 sec). Calculate the distance of the nearest point of lightning. (Speed of sound in air = \(346\) \(m\)\(/\)\(s\)).
The formula to find the distance is,
The distance of the nearest point of lightning is \(m\)