Advertisements
Advertisements
प्रश्न
What do you mean by buoyancy?
Advertisements
उत्तर
- The upward force exerted by a liquid on an object immersed in it is known as buoyancy.
- When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into the water.
APPEARS IN
संबंधित प्रश्न
What causes buoyant force (or upthrust) on a boat ?
Name the S.I. unit of density. How is it related to g Cm-3?
What is a density bottle? How is it used to find the density of a liquid?
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?
Explain why an iron needle sinks in water, but a ship made of iron floats on water.
State whether pressure is a scalar or vector?
A dam has broader walls at the bottom than at the top. Explain.
Two cylindrical vessels fitted with pistons A and B of area of cross-section 8 cm2 and 320 cm2 respectively are joined at their bottom by a tube and they are completely filled with water. When a mass of 4 kg is placed on piston A, Find:
- the pressure on piston A,
- the pressure on piston B, and
- the thrust on piston B.
Write about buoyant force.
The upward force that is caused due to the pressure difference in liquid (or fluid) is called ______.
