Question

During a thunderstorm, an observer sees a lightning flash. 6 s later he hears the thunder. The speed of sound
is 330 m/s. Approximately how far away is the observer
from the lightning?
(a) 1/20 km
(b) 1/3 km
(c) 1/2 km
(d) 2 km​

Answer 1

b). 1/3 km (maybe)

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Answer 2

Answer:

d) 2 km

Explanation:

Speed =distance /time

so, distance = speed. time

Here, Distance = 330.6

= 1960 metres

= 1.96 kilometers

This is approximately equal to 2 km.

So, (d) 2 km