Question

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

Answer 1

Answer:

1650 metres

Explanation:

Time Period (t) = 5 sec

Speed of sound (v) = 330 m/s

Distance of flash from observer (s) = ?

We know,

                        ⇒ Speed = $\frac{distance}{time}$

or,                     ⇒ $v=\frac{s}{t}$

                        ⇒ s = v × t

                        ⇒ s = (330 × 5) m

               ⇒ s = 1650 m

Thanks !

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