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प्रश्न
A person hearing at one end of a long metal bar hears two distinct sounds when the other end is struck with a stone. Explain, giving scientific reasons
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उत्तर
A person hearing at one end of the long metal bar hears two distinct sounds when the other end is struck with a stone because the sound comes from the metal bar as well as from the air. The sound travels faster in solids than air. So, the first sound comes from metal bar hitting and then from the air.
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