Advertisements
Advertisements
प्रश्न
Define upthrust and state its S.I. unit.
Advertisements
उत्तर
The upward force exerted on a body by the fluid in which it is submerged is called the upthrust. Its S.I. unit is 'newton'.
APPEARS IN
संबंधित प्रश्न
Define buoyant force. Name two factors on which buoyant force depends.
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.
Answer the following:
Will a piece of iron float or sink in mercury?
A dam has broader walls at the bottom than at the top. Explain.
Complete the following sentence :
Pressure at all points at the same depth is ....................
The pressure P1 at a certain depth in river water and P2 at the same depth in sea water are related as :
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.
The S.I. unit of upthrust is :
Pressure in a water pipe on the ground floor of a building is 100,000 Pa. Calculate the pressure in the water pipe on the first floor at a height of 3 m. [Density of water = 1000 kgm−3 ; g = 10 ms−2]
Select the correct option:
When a body is wholly or partially immersed in a liquid, it experiences a buoyant force which is equal to:
What is meant by up thrust?
