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A thin Plano-convex glass lens ( μ = 1 .5 ) has its plane surface silvered and R is the radius of curvature of curved part, then which of the following ray diagram is true for an object placed at O ? ( O is at a distance of 2 R from the lens)

Options

  1. ANone of the above

Correct answer

1

Step-by-step solution

For Refraction at first surface 1.5 v - 1 u = 1.5 - 1 R u = - 2 R , v = ∞ Therefore, rays strike the mirror normally. So, by principle of reversibility, O and I coincide.

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