Home PYQs UPPSC UPPSC MCQs Prelims 2010 (GS Paper I)

Question

"Endoscope" used by Doctors for examining the inside of the patient’s stomach, works on the principle of:

  1. Reflection of light
  2. Dispersion of light
  3. Total internal reflection of light
  4. Refraction of light

Answer:

Option C: Total internal reflection of light

Detailed Solution:

The correct answer is “Total internal reflection of light”.

The endoscope employs the total internal reflection concept using optical fibers. This procedure is used to study the interior of a hollow organ or cavities throughout the body.