Assertion: Friction is a self-adjusting force. Reason: Friction does not depend upon mass of the body.
A
If both assertion and reason are true and reason is a true 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:
d
Only static friction is a self-abjective force.This is because force of static friction is equal and opposite to applied force (so long as actual motion does not start). Friction force `= mumg`,i.e.,friction depends on mass.
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