On a cloudy day, the sound of thunder was heard 4.5 s after the flash of light was seen. How far was the cloud? Given that speed of sound = 340m/s
We will be able to see the flash almost immediately as light travels at a very fast speed. But, the speed of sound is much lesser so it will take some time.
So the distance of the cloud is given by,
Speed of sound x time=340 x 4.5=1530 m
So the distance of the cloud is given by,
Speed of sound x time=340 x 4.5=1530 m