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प्रश्न
Why does the flash of lighting reach earlier than the sound of thunder?
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उत्तर
The flash of light reaches earlier than the sound of thunder because the speed of light (its 3 x 108) is much larger than the speed of sound in air (its 330 m/s).
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संबंधित प्रश्न
Describe an experiment to show that sound can travel in a solid.
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(d) Calculate the speed of sound.
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