Question

Assertion (A): A matchstick catch fire when rubbed on the rough surface of the match box. Reason (R):Due to friction between the stick and rough surface a matchstick catches fire.
(a)
(b)
(c)
(d)

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Answer 1

Answer:

A)

Explanation:

This is because when we rub two things friction is created. Friction causes heat.For example when we run aur hands during winter we feel warm. But if friction is too much it can cause fire.

Same is the case with matchstick. On the sides of the box and the top of the stick there is some rough flamable material so when they both are rubbed fire is produced