UPSC NDA II 2013 General Ability Paper

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Question : 129 of 150

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Suppose we have an iron nail and an iron ball of same mass. When submerged in water, the iron ball may float but the nail always sinks. This is because

buoyant force on the ball is larger than that of the nail due to their shapes
viscous force on the ball is higher
viscous force on the nail is higher
gravitational force affects the ball differently from the nail

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