Assertion : The ratio of magnetic length and geometrical length of a bar magnet is nearly 0.84.
Reason : The two poles appear at points which are slightly inside the two ends.
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true and reason is not the correct explanation of assertion
(c) Assertion is true but reason is false
(d) Assertion is false and reason is true