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प्रश्न
The magnitude of buoyant force acting on an object immersed in a liquid depends on ______ of the liquid.
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उत्तर
The magnitude of buoyant force acting on an object immersed in a liquid depends on density of the liquid.
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संबंधित प्रश्न
The S.I. unit of density is ..........
A body X sinks in water, but a body Y floats on water. The density of the body X is ......... than the density of body Y.
The diagram given below show a body floating in three different liquids. A, B and C at different levels.
(a) In which liquid does the body experience the greatest buoyant force?
(b) Which liquid has the least density?
(c) Which liquid has the highest density?
For a given object, the buoyant force in liquids of different ______ is ______.
Explain the following statement:
It is easier to cut with a sharp knife than with a blunt one.
The diagram below in Fig. 4.12 shows a device which makes the use of the principle of transmission of pressure.
- Name the parts labelled by the letters X and Y.
- Describe what happens to valves A and B and to the quantity of water in the two cylinders when the lever arm is moved down.
- Give reasons for what happens to valves A and B in part (ii).
- What happens when the release valve is opened?
- What happens to valve B in cylinder P when the lever arm is moved up?
- Give a reason for your answer in part (v).
- State one use of the above device.
Figure shows the same block of wood floating in three different liquids A, B and C of densities ρ1, ρ2 and ρ3 respectively. Which of the liquid has the highest density? Give a reason for your answer.
Define atmospheric pressure diving suits. Does a diving suit create buoyancy?
Most buoyant objects are those with relatively ______.
- high volume
- higher mass
- low density
- less viscosity
Assertion (A): The buoyant force on a submerged rigid object can be considered to be acting at the center of mass of the object.
Reason (R): In rigid body, force distributed uniformly through its volume can be considered to be acting at the centre of mass of the body.
