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Geometrical Optics question

2025 · 28 Jan · Shift 1 · Q68
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  5. /2025 · 28 Jan · Shift 1 · Q68

Geometrical Optics question

2025 · 28 Jan · Shift 1 · Q68

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A hemispherical vessel is completely filled with a liquid of refractive index μ\muμ. A small coin is kept at the lowest point (O)(\mathrm{O})(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 ‾\underline{\hspace{2cm}}​. JEE Main 2025 (Online) 28th January Morning Shift Physics - Geometrical Optics Question 20 English
  1. A
    32\frac{3}{2}23​
  2. B
    32\frac{\sqrt{3}}{2}23​​
  3. C
    3\sqrt{3}3​
  4. D
    2\sqrt{2}2​
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