Question

Assertion : On a rainy day, it is difficult to drive a car or bus at high speed.

Reason : The value of coefficient of friction is lowered on wetting the surface.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (a) Both A and R are true and R is the correct explanation of A

Explanation :

On a rainy day, due to wetness of the surface, the coefficient of friction becomes lowered which might very easily lead to skidding of a bus or car. That's why it is difficult to run a bus or a car with high speed on a rainy day.