# The time interval between a lightning flash and the first sound of thunder was found to be 5s. If the speed of sound in air is 330 m/s , find the distance of the flash from the observer.

2
by Ashmachocol

2015-10-29T14:40:14+05:30

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given,
speed = 330 m/s
time = 5 sec
therefore distance,
speed = distance/time
distance = speed * time
distance = 330 * 5
distance = 1650 m
i hope that this will help u......................^_^
2015-10-29T16:02:05+05:30
The speed of light is much more compared to speed of sound.
So the time interval between a lightning flash and the  first sound of thunder is the time required by sound to reach the observer.

Speed of sound = 330 m/s
time = 5s
distance = 330*5 = 1650 m