Identity the correct statements in the following.

(A) Optical fibres consist of a core and cladding
(B) Optical fibres are fabricated such that light reflected at one side of the inner surface strikes the other at an angle smaller than the critical angle.
(C) Optical fibres make use of the phenomenon of total internal reflection.
(D) Optical fibres can be used as an optical pipe

Choose the correct answer from the options given below:

(A), (C) and (D) only

The correct answer is Option (2) → (A), (C) and (D) only

(A) Optical fibres consist of a core and cladding (Correct)
(B) Optical fibres are fabricated such that light reflected at one side of the inner surface strikes the other at an angle smaller than the critical angle. (Incorrect)
(C) Optical fibres make use of the phenomenon of total internal reflection. (Correct)
(D) Optical fibres can be used as an optical pipe (Correct)