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Question

A large tank filled with water to a height ‘h’ is to be emptied through a small hole at the bottom. The ratio of times taken for the level of water to fall from h to h2 and from h2 to zero is

A
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C
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Solution

The correct option is C
Time taken for the level to fall from H to H' t = AA02g[HH] According to problem- the time taken for the level to fall from h to h2t1=AA02g[hh2]
and similarly time taken for the level to fall from h2to zerot2=AA02g[h20]
t1t2=112120=21.

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