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    An object weights 10 N in air. Whenimmersed fully in a liquid it weighs only 8N. The weight of liquid displaced by the objectwill be.
    Question

    An object weights 10 N in air. Whenimmersed fully in a liquid it weighs only 8N. The weight of liquid displaced by the objectwill be.

    A.

    10N

    B.

    8N

    C.

    12N

    D.

    2N

    Correct option is D

    ​​The Correct Answer is  (d) 2N

    Explanation:
    • When an object is immersed in a liquid, it experiences an upward force called the buoyant force, which is equal to the weight of the liquid displaced by the object. This buoyant force causes the object to appear lighter when submerged in the liquid.
    • The weight in air is 10 N.
    • The apparent weight in the liquid is 8 N.
    • The difference in weight is the buoyant force, which is equal to the weight of the liquid displaced by the object.
    Buoyant force=Weight in airApparent weight in liquid\text{Buoyant force} = \text{Weight in air} - \text{Apparent weight in liquid}​​
    Buoyant force=10 N8 N=2 N\text{Buoyant force} = 10 \, \text{N} - 8 \, \text{N} = 2 \, \text{N}​​

    Information booster:
    • Buoyant force is the upward force exerted by the liquid on the object, which depends on the volume of liquid displaced.
    • According to Archimedes' Principle, the buoyant force is equal to the weight of the liquid displaced by the object.


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