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प्रश्न
Flash of lightning reaches earlier than the sound of thunder. Explain the reason.
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उत्तर
This happens because the light travels much faster than sound.
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संबंधित प्रश्न
Fill in the blank.
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In which medium sound travels fastest : air, water or steel?
The frequency of the sound emitted by the loudspeaker is 1020 Hz. Calculate the wavelength of the sound wave in air in cm where its velocity is 340 m/s.
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Fill in the blank with suitable word.
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