Advertisements
Advertisements
प्रश्न
State three factors on which the pressure at a point in a liquid depends.
Advertisements
उत्तर
Pressure at a point in a liquid depends upon the following three factors:
(i) Depth of the point below the free surface.
(ii) Density of liquid.
(iii) Acceleration due to gravity.
APPEARS IN
संबंधित प्रश्न
What is upthrust ?
What is the scientific name of the 'upward force' acting on an object immersed in a liquid?
What causes buoyant force (or upthrust) on a boat ?
A piece of wood floats on water. The buoyant force on wood will be
State the laws of liquid pressure.
Prove that the loss in weight of a body when immersed wholly or partially in a liquid is equal to the buoyant force (or upthrust) and this loss is because of the difference in pressure exerted by liquid on the upper and lower surfaces of the submerged part of body.
A beaker contains a liquid of density ‘ρ’ up to height ‘h’ such that ‘PA’ is atmospheric pressure and ‘g’ is the acceleration due to gravity. Answer the following questions:
- What is the pressure on the free surface of the liquid?
- What is the pressure on the base of the beaker?
- What is the lateral pressure at the base on the inner walls of the beaker?
Select the correct option:
When an object sinks in a liquid, its:
Write about buoyant force.
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.
