| Directions: Each of the following questions consists of two statements, one is Assertion (A) and the other is Reason (R). Select the correct answer to these questions from the codes a. b. c. and d. as given below: |
| Assertion (A): The magnitude of the force of friction depends on the roughness of the surface. |
| Reason (R): When both the surfaces are smooth, the force of friction reduces to almost zero. |
A) Both A and R are true and R is correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Correct Answer: B
Solution :
(b)
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