A body weighs $10 N$ in air. If it is immersed in water, it weighs $6 N$ . Then the force of buoyancy is ____ $N$ .

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Detailed Solution

The force of buyoancy is

4 N

.
According to the Archimedes principle “When a body is fully or partially immersed in a fluid at rest, it appears to lose weight”. In other words,
Apparent weight

10 N - 6 N = 4 N

Here

4 N

is the buoyancy force or the weight of the liquid displaced by the object

4 N

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