Question

Raju's mother has to undergo Endoscopy and Raju is too feared hearing that. He comes to you as a friend with few of his queries. Answer them to help out your friend and make him relaxed.i) What is the device used for the purpose.ii) What is the principle of working of that device.iii) What is the main condition for this principle to be followed

Answer 1

(i) Endoscope
(ii) ​The endoscope pipe uses the phenomenon of Total Internal Reflection for imaging of the internal organs of the human body. A narrow tube of glass fibre with plastic coating carries light from one end of the fibre to another into the cavity of the body. The injured part is illuminated by this light. The reflected light travels back into the eye piece and the physician is able to see what is happening inside the body.

(iii) To see the various parts inside the body.