Physics question and answers for March 28, 2024
- Q 7 24 A person can change the volume of his body by taking air into his lungs The amount of change can be determined by weighing the person under water...
- Q 35 What force must be applied to detach two wetted photographic plates 9 cm x 12 cm in size from each other without shifting them The thickness of water between...
- Q Example 13 27 Two spherical raindrops of equal size are falling vertically through air with a terminal velocity of 1 ms What would be the terminal speed if these two...
- Q 7 6 Water from a tap emerges vertically downwards with an initial speed of 1 m s The cross sectional area of the tap is 10 m Assume that the...
- Q 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...
- Q Consider a cuboidal vessel 2R x 2R x R with a hemispherical cavity of radius R kept at a horizontal smooth surface as shown in the figure The vessel has...
- Q 49 A tube of small uniform cross section is used to siphon the water from the vessel Then choose the correct alternative s Pwater 103kg m g 10 m s...
- Q 7 31 To measure the atmospheric pressure four different tubc3 of length 1m 2m 3m and 4m are used If the height of the mercury column in the tubes is...
- Q 54 Air is blown through a pipe AB at a rate of 15 liters per minute The cross sectional area of the broad portion of the pipe AB is 2...
- Q 7 19 Figure 7 102 shows a hydraulic press with the larger piston of diameter 35 cm at a height of 1 5 m relative to the smaller piston of...
- Q 1 An iron block is on a boat which floats in a pond The block is thrown into the water The level of water in the pond will be a...
- Q 7 26 For a fluid which is flowing steadily the level in the vertical tubes is best represented by JL A C JE B D 7 27 A cylindrical wooden...
- Q d both are wrong 50 There are three different liquids with densities P1 P2 and p3 in a U shaped container as shown in figure The lengths shown are H...
- Q ty of work P2 are em ect he 51 53 The diagram shows a tall cylindrical container kept on a horizontal surface From a tap water comes with constant rate...
- Q c 2p3 3p1 P2 d p3 51 A solid sphere of radius r is floating at the interface of two immiscible liquids of densities p and P2 P2 P1 half...
- Q 52 A hollow sphere of volume V is floating on water surface with half of its volume immersed What should be the minimum volume of water poured inside the sphere...
- Q 37 A vertical jet of water coming out of a nozzle with velocity 20 m s supports a plate of mass M stationary at a height h 15 m as...
- Q Half of the rectangular plate shown in figure is made of a material of density p and the other half of density p2 The length of the plate is L...
- Q 7 49 The interface of two liquids of densities p and 2p respectively lies at the point A in a U tube at rest The height of liquid column above...
- Q An open cylindrical vessel of large cross section A contains liquid upto a height H 120 cm A A small orifice of area at a height of 1000 h 20...
- Q is flowing in a tube as shown in figure Area of section 1 is double that of section 2 Centre of mass of section 2 is h height above the...
- Q 7 55 A wooden plank of length 1m and uniform cross section is hinged at one end to the bottom of tank as shown in figure 7 118 The tank...
- Q 2 45 A block of wood weighs 12 kg and has a relative density 0 6 It is to be in water with 0 9 of its volume immersed What...
- Q 1 point The tank in the form of a right circular cone of radius 6 feet and height 14 feet standing on its end vertex down is leaking through a...
- Q 7 51 A wooden stick of length L radius R and density p has a small metal piece of mass m of negligible volume attached to its one end Find...
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