Question

Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?

NCERT Class IX
Sciences - Main Course Book

Chapter 12. Sound

Answer 1

because light is faster than sound
that's why this happen

Answer 2

☆$\red {HELLO\:DEAR}$☆

The speed of sound (344 m/s) is less than the speed of light (3 x 10^8 m/s).

Sound of thunder takes more time to reach the Earth as compared to light.

Hence, a flash is seen before we hear a thunder.

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