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  4. A large tank filled with water to a height h is to be emptied through a small hole at the bottom. The ratio of time taken for the level of water to fall from h to ( texth/2) and from ( texth/2) to zero is

Q. A large tank filled with water to a height is to be emptied through a small hole at the bottom. The ratio of time taken for the level of water to fall from to and from to zero is

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Solution:

Time taken for the level to fall from H to H'

According to problem the time taken for the level to fall from h to

and similarly time taken for the level to fall from

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