Question

If an immersed object displaces liquid weighing $10N$, the buoyant force on the object is

• A. $10N$
• B. $5N$
• C. $20N$
• D. $1N$

Answer 1

The correct option is A $10N$

We know that Buoyant Force is an upward force acting on the object immersed in a fluid. According to $Archimede{s}^{\prime }principle$, any body completely or partially submerged in a fluid at rest is acted upon by an upward or buoyant force whose magnitude is equal to the weight of the fluid displaced by the object.
So, Buoyant force = Weight of liquid displaced = 10 N