The speed of sound in air at sea level is 340ms\(^{-1}\) while that of light is 300 000kms\(^{-1}\). How far (to the nearest meter) from the center of a thunderstorm is an observer who hears a thunder 2s after a lightning flash?
- 170m
- 340m
- 600m
-
680m
The correct answer is: D
Explanation
Distance = 340 x 2 = 680m