A tank with a square base of area 2.0 m 2 is divided into two compartments by a vertical…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
A tank with a square base of area 2.0 m2 is divided into two compartments by a vertical partition in the middle. There is a small hinged door of face area 20 cm2 at the bottom of the partition. Water is filled in one compartment and an acid of relative density 1.5 in the other, both to a height of 4 m. If g = 10 ms–2, the force necessary to keep the door closed is
- 10 N
- 20 N
- 40 N
- 80 N
Answer
(C) 40 N
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