Advertisements
Advertisements
प्रश्न
Describe an experiment to show that a body immersed in a liquid appears lighter than it really is.
उत्तर
Experiment to show that a body immersed in a liquid appears lighter:
Take a solid body and suspend it by a thin thread from the hook of a spring balance as shown in the above figure (a). Note its weight. Above figure (a) shows the weight as 0.67 N.
Then, take a can filled with water. Immerse the solid gently into the water while hanging from the hook of the spring balance as shown in figure (b). Note its weight. Above figure (b) shows the weight as 0.40 N.
The reading in this case (b) shall be less than the reading in the case (a), which proves that a body immersed in a liquid appears to be lighter.
APPEARS IN
संबंधित प्रश्न
Why does a block of wood held under water rise to the surface when released ?
A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
When does an object float or sink when placed on the surface of a liquid ?
Differentiate between thrust and pressure.
Why is the tip of an allpin made sharp?
Explain the following statement:
Sleepers are laid below the rails.
The pressure inside a liquid of density p at a depth h is :
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from the jar is pumped out? Explain your answer.
Select the correct option.
Unit of thrust in the SI system is