Advertisements
Advertisements
प्रश्न
How does the pressure exerted by a solid and fluid differ?
Advertisements
उत्तर
A solid exerts pressure only on the surface on which it is placed, i.e. at its bottom, but a fluid exerts pressure at all points in all directions.
संबंधित प्रश्न
Relative density of a substance is expressed in g cm-3.
Distinguish between density and relative density.
A plastic cube is released into the water. Will it sink or come to the surface of the water?
How is the unit bar related to the S.I. unit pascal?
Differentiate between thrust and pressure.
Pressure at the free surface of a water lake is P1, while at a point at depth h below its free surface is P2. (a) How are P1 and P2 related? (b)Which is more P1 or P2?
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
You are provided with a hollow iron ball A of volume 15 cm3 and mass 12 g and a solid iron ball B of mass 12 g. Both are placed on the surface of water contained in a large tub.
- Find upthrust on each ball.
- Which ball will sink? Give a reason for your answer (Density of iron = 8.0 g cm-3)
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.
