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A rectangular vessel when full of water ...

A rectangular vessel when full of water takes 10 minutes to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water

A

9 min

B

7 min

C

5 min

D

3 min

Text Solution

Verified by Experts

The correct Answer is:
B
`t=(A)/(A_(0))sqrt((2H)/(g))`
`therefore (t_(1))/(t_(2))=sqrt((H_(1))/(H_(2)))`
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Knowledge Check

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