If the time interval between lightning and thunder is 2 seconds, what is the distance of the point of the lightning ? ( Speed of sound in air is 346 ms-1 )
Given, speed of sound in air = 346 m/s
Time interval between lightning and thunder = 2 s
Therefore, the distance from the nearest point of lightning = (speed of sound in air) * (time interval between lightning and thunder)
= 346 × 2 {Since distance=speed×time}
= 692 metres (approx.)