Question

40. Assertion (A): An electric bulb makes a 'bang' when it is broken.
Reason (R): The air inside the bulk rushes out immediately on breaking.
(A) A is true but R is false.
(B) Both A and R are true and R is the correct explanation of A.
(C) A is false but R is true.
(D) Both A and R are true but R is not the correct explanation of A.
(E) Both A and R are false.​

Answer 1

Answer:

option B is the right one

Explanation:

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Answer 2

Answer:

Assertion is correct but reason is wrong. So option A.

Explanation:

There is a vacuum inside the electric bulb. When the bulb breaks, air rushes in at great speed from all sides to fill the vacuum, thus producing a bang.