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Assertion: To floats, a body must displa...

Assertion: To floats, a body must displace liquid whose weight is greater than actual weight of the body.
Reason: The body will experience no net downward force in that case.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

if assertion is true but reason is false.

D

if both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Net force =actual weight -upthurst force
=actual weight -weight of liquid displaced
The body will rise above the surface of liquid to such an extent that the weight of the liquid displaced by the immersed part of the body (i.e. upward thrust) becomes equal to the weight of the body.Thus the body will float when upward thrust is more than its actual weight. in this special case the density of solid body is less than the density of liquid.
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