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Geometrical Optics question

2021 · Shift 2 · Q41
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  5. /2021 · Shift 2 · Q41

Geometrical Optics question

2021 · Shift 2 · Q41

JEE AdvancedPhysicsGeometrical OpticsMultiple correct+4 / −2
For a prism of prism angle θ\thetaθ = 60 ∘^\circ∘, the refractive indices of the left half and the right half are, respectively, n1 and n2 (n2 ≥\ge≥ n1) as shown in the figure. The angle of incidence i is chosen such that the incident light rays will have minimum deviation if n1 = n2 = n = 1.5. For the case of unequal refractive indices, n1 = n and n2 = n +Δ\DeltaΔ n (where Δ\DeltaΔ n << n), the angle of emergence e = i + Δ\DeltaΔ e. Which of the following statement(s) is(are) correct? JEE Advanced 2021 Paper 2 Online Physics - Geometrical Optics Question 39 English
  1. A
    The value of Δ\DeltaΔ e (in radians) is greater than that of Δ\DeltaΔ n
  2. B
    Δ\DeltaΔ e is proportional to Δ\DeltaΔ n
  3. C
    Δ\DeltaΔ e lies between 2.0 and 3.0 milliradians, if Δ\DeltaΔ n = 2.8 ×\times× 10 −-− 3
  4. D
    Δ\DeltaΔ e lies between1.0 and 1.6 milliradians, if Δ\DeltaΔ n = 2.8 ×\times× 10 −-− 3
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