Ratan saw a flash of lightning and after sometime heard the sound of thunder. If the time gap between seeing and hearing is 3 s, then write the following steps in sequence to find the height from the ground where the lightning is produced. (a) Consider the velocity of sound (v) as 330 ms^(-1). (b) Note the time gap (t) between seeing and hearing. (c) From the formula, speed = ("distance")/("time taken"), height at which lightning was produced = speed of sound xx time interval. (d) Substitute the values in the equation (1) and find the value of the height of the lightning from the ground.

Ratan saw a flash of lightning and after sometime heard the sound of t

1.	Ratan saw a flash of lightning and after sometime heard the sound of thunder. If the time gap between seeing and hearing is 3 s, then write the following steps in sequence to find the height from the ground where the lightning is produced. (a) Consider the velocity of sound (v) as 330 ms^(-1). (b) Note the time gap (t) between seeing and hearing. (c) From the formula, speed = ("distance")/("time taken"), height at which lightning was produced = speed of sound xx time interval. (d) Substitute the values in the equation (1) and find the value of the height of the lightning from the ground.
Answer» b a c d b c a d c b d a d a b c Solution :From the given data, time gap = 3 s. We know, `v = 330 MS^(-1)` Speed `= ("distance")/("time") to (c)` Neglecting the time taken by the light to reach the GROUND because VELOCITY of light is very LARGE, that is, `C = 3 xx 10^(8) ms^(-1)`. On substituting the value, the height of the lightning from the ground is equal to `330 xx 3 = 990 m.`