JEE Mains Model Paper 5
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Question : 30 of 90
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A cylindrical tank of height 0.4 m is open at the top and has a diameter 0.16 m.Water is filled in it up to a height of 0.16 m. How long it will take to empty thetank through a hole of radius 5 × 10 − 3 in its bottom?
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