(A) Endoscopy involves use of optical fibres to study internal organs ( R) Optical fibres work based on phenomenon of total internal reflection.

(A) Endoscopy involves use of optical fibres to study internal organs

1.	(A) Endoscopy involves use of optical fibres to study internal organs ( R) Optical fibres work based on phenomenon of total internal reflection.
Answer» Both A and R are TRUE and R is the correct explanation of A Both A and R are true and R is not the correct explanation of A A is true and R is false Both A and R is false Answer :A