The phenomenon, which is not due to total internal reflection is (a) mirage on hot summer days. (b) brilliance of diamond (c) difference between apparent real depth of a pond (d) working of optical fibre.

Answer: (c). Mirage, brilliance of diamond and optical fibres all work by total internal reflection. A pond looks shallower because light bends (refracts) when it goes from water into air; no TIR is involved. So the answer is (c) difference between apparent and real depth of a pond.

The phenomenon, which is not due to total internal reflection is | MHT CET 2025 (21 Apr, Shift 1)

Q9MHT CET 2025 · 21 APR · SHIFT 1Easy

Total Internal Reflection

The phenomenon, which is not due to total internal reflection is

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Answer: (c)

Mirage, brilliance of diamond and optical fibres all work by total internal reflection.
A pond looks shallower because light bends (refracts) when it goes from water into air; no TIR is involved.
So the answer is (c) difference between apparent and real depth of a pond.

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