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Geometrical Optics question

2021 · Shift 1 · Q50
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  5. /2021 · Shift 1 · Q50

Geometrical Optics question

2021 · Shift 1 · Q50

JEE AdvancedPhysicsGeometrical OpticsMultiple correct+4 / −2
A wide slab consisting of two media of refractive indices n1 and n2 is placed in air as shown in the figure. A ray of light is incident from medium n1 to n2 at an angle θ\thetaθ, where sin θ\thetaθ is slightly larger than 1/n1. Take refractive index of air as 1. Which of the following statement(s) is(are) correct? JEE Advanced 2021 Paper 1 Online Physics - Geometrical Optics Question 41 English
  1. A
    The light ray enters air if n2 = n1
  2. B
    The light ray is finally reflected back into the medium of refractive index n1 if n2 < n1
  3. C
    The light ray is finally reflected back into the medium of refractive index n1 if n2 > n1
  4. D
    The light ray is reflected back into the medium of refractive index n1 if n2 = 1
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