Advertisements
Advertisements
प्रश्न
Why is a force needed to keep a block of wood inside water?
Advertisements
उत्तर
A force is required to hold a block of wood in water because the upthrust caused by water on the block when fully submerged surpasses its weight.
APPEARS IN
संबंधित प्रश्न
Name the scientist who gave he magnitude of buoyant force acting on a solid object immersed in a liquid.
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.
Differentiate between thrust and pressure.
Write an expression for the pressure at a point inside a liquid. Explain the meaning of the symbols used.
A tall vertical cylinder filled with water is kept on a horizontal table top. Two small holes A and B are made on the wall of the cylinder, A near the middle and B just Below the free surface of water. State and explain your observation.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
The pressure inside a liquid of density p at a depth h is :
The pressure P1 at the top of a dam and P2 at a depth h form the top inside water (density p) are related as :
Will a body weigh more in air or vacuum when weighed with a spring balance? Give a reason for your answer.
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
