Assertion (A): The diameter of SMF is selected in such a way that single fundamental ray travels straight along the axis of the core of the fiber.Reason (R): The diameter of core of SMF is more than 10 μm and outer diameter is less than 125 μm.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Assertion (A): The diameter of SMF is selected in such a way that sing

1.	Assertion (A): The diameter of SMF is selected in such a way that single fundamental ray travels straight along the axis of the core of the fiber.Reason (R): The diameter of core of SMF is more than 10 μm and outer diameter is less than 125 μm.
A.	Both (A) and (R) are true and (R) is the correct explanation of (A).
B.	Both (A) and (R) are true, but (R) is not the correct explanation of (A).
C.	(A) is true, but (R) is false.
D.	(A) is false, but (R) is true.
Answer» D. (A) is false, but (R) is true.

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Assertion (A): The diameter of SMF is selected in such a way that single fundamental ray travels straight along the axis of the core of the fiber.Reason (R): The diameter of core of SMF is more than 10 μm and outer diameter is less than 125 μm.

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