Question

4. Assertion (A) : Endoscopy involves use of optical fibres to study internal organs. Reason (R) : Optical fibres are based on phenomena of total internal reflection

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

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

C) A is true But R is false

D) A is false But R is true

Answer 1

Answer:

Explanation: Correct option a Both A and R are true and R is the correct explanation of AExplanation:An endoscope is made of optical fibres. Its core is made of optically denser material. Its outer cladding is made of optically rarer material. It is based on total internal reflection.

Answer 2

Explanation:

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