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प्रश्न
It is much easier to burst an inflated balloon with a needle than by a finger. Explain.
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उत्तर
Because needle tip has very less area of cross-section in comparison to that of our finger and we know that pressure exerted by a force is inversely proportional to the area where it has been applied, so pressure exerted will be more by the needle tip than the finger.
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संबंधित प्रश्न
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