Flash of lightning reaches us earlier than the sound of thunder. Explain the reason.

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Solution

In nature, a lightning flash and the associated thunder occur at almost the same time in a thunderstorm. A person on the ground sees the lightning flash before hearing the thunder because light at a speed of around $3 \times 10^{8} m s^{- 1}$ travels much faster than sound which moves at $340 m s^{- 1}$

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Flash of lightning reaches us earlier than the sound of thunder. Explain the reason.

In nature, a lightning flash and the associated thunder occur at almost the same time in a thunderstorm. A person on the ground sees the lightning flash before hearing the thunder because light at a speed of around 3×108 ms−1 travels much faster than sound which moves at 340 ms−1