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Geometrical Optics question

2019 · Shift 2 · Q46
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Geometrical Optics question

2019 · Shift 2 · Q46

JEE AdvancedPhysicsGeometrical OpticsNumerical+3 / −1
A monochromatic light is incident from air on a refracting surface of a prism of angle 75 ∘^\circ∘ and refractive index n0=3{n_0} = \sqrt 3n0​=3​. The other refracting surface of the prism is coated by a thin film of material of refractive index n as shown in figure. The light suffers total internal reflection at the coated prism surface for an incidence angle of θ≤60∘\theta \le 60^\circθ≤60∘. The value of n2 is ............. JEE Advanced 2019 Paper 2 Offline Physics - Geometrical Optics Question 54 English
Numerical answer
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