Question

What is meant by total internal reflection ? Explain with a neat diagram and write

any two applications of total internal reflection.
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Answer 1

Answer:

Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. ... The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle

Explanation:

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Answer 2

Answer:

Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle.

Applications of Total Internal Reflection of Light:

• The phenomenon of total internal reflection of light is used in many optical instruments like telescopes, microscopes, binoculars, spectroscopes, periscopes etc.
• The brilliance of a diamond is due to total internal reflection.