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A large tank filled with water to a height "h" is to be emptied through a small hole at the bottom. The ratio of the time taken for the level to fall from h to h2  and that taken for the level to fall from h2  to 0 is

a
2−1
b
12
c
2
d
12−1

detailed solution

Correct option is A

t1∝h−h2                                        t2∝h2−0 t1t2=h−h2h2=2−1

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