ramesh measured the time gap between lightning and thunder, and found that it is 3 seconds assuming light covers - Science - Sound

Question

ramesh measured the time gap between lightning and thunder, and
found that it is 3 seconds assuming light covers distance
instantly, what is the distance between ramesh and the cloud?

Pulkit Bhatnagar · Answer

D= ?
T= 3 seconds
S in the air = 340 m/s
therefore,
D=ST
D=340*3
D=1020
Answer= 1020 m

ramesh measured the time gap between lightning and thunder, and found that it is 3 seconds. assuming light covers distance instantly, what is the distance between ramesh and the cloud?