Ray Optics and Optical Instruments - Result Question 9

9. Which of the following is not due to total internal reflection?

[2011]

(a) Working of optical fibre

(b) Difference between apparent and real depth of pond

(c) Mirage on hot summer days

(d) Brilliance of diamond

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Answer:

Correct Answer: 9. (b)

Solution:

  1. (b) Difference between apparent and real depth of a pond is due to the refraction of light, not due to the total internal reflection. Other three phenomena are due to the total internal reflection.