Advertisements
Advertisements
प्रश्न
What do you mean by buoyancy?
Advertisements
उत्तर
All liquid exerts a upward force on the body placed in it. This Phenomenon is called buoyancy.
APPEARS IN
संबंधित प्रश्न
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.
Define the term Density of a substance.
Why is a force needed to keep a block of wood inside water?
A small block of wood is completely immersed in (i) water, (ii) glycerine and then released. In each case, What do you observe? Explain the difference in your observation in the two cases.
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 metal solid cylinder tied to a thread is hanging from the hook of a spring balance. The cylinder is gradually immersed into the water contained in a jar. What changes do you expect in the readings of the spring balance? Explain your answer.
Write the SI units of Buoyant force
Higher Order Thinking Skill.
How does a fish manage to rise up and move down in water?
The center of gravity of the floating body and the center of buoyance are in the same ______ line.
Salt water provides less buoyant force than freshwater.
