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[" (3) A rectangular vessel when full of...

[" (3) A rectangular vessel when full of water,takes "1],[10" minto be emptied through an oriffice in its bottom."],[" How much time will it take to be emptied when half "1],[" filled with water? "],[[" (1) "9min," (2) "7min],[" (3) "5min," (4) "3min],[" 4.A metal plate of area "10^(3)cm^(2)" rests on a layer of oil "144]]

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

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