JEE Main 2025 Jan 28 Shift 1, Physics Q5: Critical Angle and Total Internal Reflection
JEE Main2025Jan 28, Shift 1Physics
Q.
A hemispherical vessel is completely filled with a liquid of refractive index . A small coin is kept at the lowest point (O) of the vessel as shown in figure. The minimum value of the refractive index of the liquid so that a person can see the coin from point E (at the level of the vessel) is _____.
- A
- B
- C
- D
Solution
For least value of \(\mu\), \(c\) should be maximum.
Concept behind this question
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