Advertisements
Advertisements
Question
For a given object, the buoyant force in liquids of different ______ is ______.
Options
the same
density
different
area
Advertisements
Solution
For a given object, the buoyant force in liquids of different density is the same.
RELATED QUESTIONS
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is
Define the term Density of a substance.
How does the pressure exerted by thrust depend on the area of surface on which it acts? Explain with a suitable example.
Complete the following sentence :
Pressure at a point inside the liquid is ...................... To its depth.
(i) The diameter of neck and bottom of a bottle are 2 cm and 10 cm, respectively. The bottle is completely filled with oil. If the cork in the neck is pressed in with a force of 1.2 kgf, what force is exerted on the bottom of the bottle?
(ii) Name the law/principle you have used to find the force in part (a).
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.
What is meant by the term buoyancy?
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
Complete the analogy.
Downward force : Weight :: Upward force offered by liquid : _____.
