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प्रश्न
It is difficult to open an inkpot with greasy or oily hands. Explain.
उत्तर
When the hands are oily, then the oil acts as a lubricant and reduces the friction.
As the friction force is less, it is difficult to get a grip of the inkpot and it becomes difficult to open it.
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संबंधित प्रश्न
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