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Geometrical Optics question

2021 · 17 Mar · Shift 1 · Q53
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  5. /2021 · 17 Mar · Shift 1 · Q53

Geometrical Optics question

2021 · 17 Mar · Shift 1 · Q53

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
The thickness at the centre of a plane convex lens is 3 mm and the diameter is 6 cm. If the speed of light in the material of the lens is 2 ×\times× 108 ms −-− 1. The focal length of the lens is ‾\underline{\hspace{2cm}}​.
  1. A
    0.30 cm
  2. B
    30 cm
  3. C
    15 cm
  4. D
    1.5 cm
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