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Geometrical Optics question

2019 · 9 Apr · Shift 2 · Q66
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Geometrical Optics question

2019 · 9 Apr · Shift 2 · Q66

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A thin convex lens L (refractive index = 1.5) is placed on a plane mirror M. When a pin is placed at A, such that OA = 18 cm, its real inverted image is formed at A itself, as shown in figure. When a liquid of refractive index μ1 is put between the lens and the mirror, The pin has to be moved to A', such that OA' = 27 cm, to get its inverted real image at A' itself. The value of μ1 will be :- JEE Main 2019 (Online) 9th April Evening Slot Physics - Geometrical Optics Question 183 English
  1. A
    3\sqrt 33​
  2. B
    3 / 2
  3. C
    2\sqrt 22​
  4. D
    4 / 3
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