Explain why, the flash of lightning is seen first but the sound of thunder is heard a little later (though lightning and thunder take place in the sky at the same time and same distance from us).

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Solution

The velocity of light which is equal to 3 $\times$ $10^{8}$ m/s is much greater than the velocity of sound which is equal to 344 m/s. Hence, we see the flash of lightning much before the sound of thunder reaches us.

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Explain why, the flash of lightning is seen first but the sound of thunder is heard a little later (though lightning and thunder take place in the sky at the same time and same distance from us).

The velocity of light which is equal to 3 × 108 m/s is much greater than the velocity of sound which is equal to 344 m/s. Hence, we see the flash of lightning much before the sound of thunder reaches us.

The velocity of light which is equal to 3 $\times$ $10^{8}$ m/s is much greater than the velocity of sound which is equal to 344 m/s. Hence, we see the flash of lightning much before the sound of thunder reaches us.