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COMPREHENSION A tank has a hole of area 2 cm at its bottom and in...

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COMPREHENSION A tank has a hole of area 2 cm at its bottom and in this hole a conical cork and water is filled up The water level is made to fall slowly by means of another orifice in the tank When the water level comes to a height of H cm the conical cork mass of the cork 40 gm Area of hole 2 cm density of water 1 gm cm Area of just comes out from the hole Given volume of water displaced by the cork 80 cm circular cross section of conical cork 8 cm Height of cork submerged in and P 105 N m 120 22 water cm Take g 10 m s 7 7 38 Calculate the value of H A 15 cm C 22 cm 39 B 20 cm D 17 cm A 1 3 N C 0 63 N Calculate the force exerted by water on the curved surface of the conical cork submerged water when the liquid level in the vessel is equal to H B 60 63 N D 70 63 N H The total force exerted by all the fluids on the conical cork in the vertical direction is A 0 4 N B 0 8 N C 1 N D 1 4 N

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