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in Physics by (69.4k points)

A tank is filled with water to a depth of h metre. A hole of cross section a at the bottom allows the water to drain out (as in fig.), then at what distance below the hole, the cross sectional area of the stream is half the area of the hole when H will be

(a) 3 h (b) 6 h (c) 9 h (d) 1 h 

1 Answer

+1 vote
by (64.1k points)
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Best answer

Correct option  (a) 3h

Explanation:

Case I :

Rate of flow of water

= a × v = a x √(2gh)   ...(i)

Case II :

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