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Geometrical Optics question

2004 · Shift 0 · Q154
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Geometrical Optics question

2004 · Shift 0 · Q154

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A light ray is incident perpendicularly to one face of a 90∘{90^ \circ }90∘ prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45∘{45^ \circ }45∘, we conclude that the refractive index nnn AIEEE 2004 Physics - Geometrical Optics Question 210 English
  1. A
    n>12n \gt {1 \over {\sqrt 2 }}n>2​1​
  2. B
    n>2n \gt \sqrt 2n>2​
  3. C
    n<12n \lt {1 \over {\sqrt 2 }}n<2​1​
  4. D
    n<2n \lt \sqrt 2n<2​
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