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Assertion: in optical fibre, the diamete...

Assertion: in optical fibre, the diameter of the core is kept small.
Reason: This smaller diameter fo the fibre should have incident angle more than the critical angle required for total internal reflection.

A

Assertion is True, Reason is True, Reason is a correct explanation for Assertion.

B

Assertion is True, Reason is True, Reason is not a correct explanation for Assertion.

C

Assertion is True, Reason is False.

D

Assertion is False, Reason is False.

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