Statement I: Imagine holding two identical bricks under water. Brick `A` is completely submerged just below the surface of water, while brick `B` is at a greater depth. The magnitude of force exerted by the person (on the brick) to hold brick `B` in place is the same as magnitude of force. exerted by the person (on the brick) to hold brick `A` in place.
Statement II: The magnitude of buoyant force on a brick completely submerged in water is equal to the magnitude of weight of water it displaced and does not depend on the depth of the brick in water.

Options

A. Statement I is true, statement II is true and Statement II is a correct explanation for Statement I.
B. Statement I is true, Statement II is true and Statement II is NOT the correct explanation for Statement I.
C. Statement I is true, Statement II is false.
D. Statement I is false, Statement II is true.

Answer

A

Explanation

Since the net buoyant force on the brick completely submerged, in water is independent of its depth below the water surface, the man will have to exert the same force on both the bricks. Hence, statement I is true, Statement II is true, statement II is a correct explanation for Statement I.