Question

Assertion: When a boy walks on a wet floor, the chances are that he trips and falls down.
Reason: We can reduce frictional force by polishing the surface.

• A. Both assertion and reason are true and the reason is the correct explanation for the assertion.
• B. Both assertion and reason are true and the reason is not the correct explanation for the assertion.
• C. Assertion is a true statement but the reason is false.
• D. Both assertion and reason are false statements.

Answer 1

The correct option is B Both assertion and reason are true and the reason is not the correct explanation for the assertion.

Smooth surfaces like ice, glass, wet floor etc offer less friction as they have very few irregularities. Due to less friction, the chances are that we can trip and fall down on such surfaces.
Whereas rough surfaces like rock and sand provide larger friction as they have more irregularities. Hence, it’s easier to walk on rough surfaces.