State whether the following statements are true or false:

(a) The buoyant force depends on the nature of object immersed in the liquid.

(b) Archimedes’ principle can also be applied to gases.

Archimedes’ principle and principle of floatation.

An object weighs 10 N in air. When immersed fully in a liquid, it weighs only 8 N. The weight of liquid displaced by the object will be:

A. 2 N B. 8 N

C. 10 N D. 12 N

An object is put in three liquids having different densities, one by one. The object floats with and parts of its volume outside the surface of liquids of densities d₁, d₂, and d₃ respectively. Which of the following is the correct order of the densities of the three liquids?

A. d₁> d₂> d₃ B. d₂> d₃> d₁

C. d₁< d₂< d₃ D. d₃> d₂> d₁

For balls, A, B, C and D displace 10 mL, 24 mL, 15 mL and 12 mL of a liquid respectively, when immersed completely. The ball which will undergo the maximum apparent loss in weight will be:

A. A

B. B

C. C

D. D

Two different bodies are completely immersed in water and undergo the same loss in weight. Is it necessary that their weights in air should also be the same? Explain.

If two equal weights of unequal volumes are balanced in air, what will happen when they are completely dipped in water? Why?

A beaker full of water is suspended from a spring balance. Will the reading of the balance change:

(a) If a cork is placed in water?

(b) If a piece of heavy metal is placed in it?

Give reasons for your answer.

In which direction does the buoyant force on an object due to a liquid act?

State whether the following statements are true or false:

(a) The buoyant force depends on the nature of object immersed in the liquid.

(b) Archimedes’ principle can also be applied to gases.

Name the force which makes heavy objects appear light when immersed in a liquid.