Question

Which of the following does not happen due to friction?

(A) A nail is fixed in the wall

(B) fire can be produced with a matchstick.

(C) heat is produced.

(D) durability of chappals increases.​

Answer 1

Answer:

B

Explanation:

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Answer 2

The right answer in context to the given question is Option D: durability of chappals increases.​

• When two surfaces have irregularities and are rough friction comes into play. As a result, friction is created when they come into touch and rub or glide across each other.
• Chappals and sandals' durability does not improve over time; rather, it deteriorates.
• Chappals have a rough grip at the sole when they are new. After a lengthy period of use, the sole becomes smooth and the friction between the sole and the road decreases.
• Due to friction, the other options are also possible as fire and heat can be produced by rubbing and nail if fixed in the wall due to irregularities in the wall.
• However, due to friction, the chappal's durability decreases rather than increases.