Geometrical OpticsHard
Question
What is the length of the image of the rod in mirror, according to the observe in air ? (refractive index of the liquid is μ)
Options
A.μL + L
B.L + 
C.Lμ +
D.None of these
Solution
When observer in rarer medium and object is in denser medium then the length of immersed portion will be shorter (apparent)
Hence length of image of red in water
= 2L + μL - L + μL
Hence length of image of rod seen by observer in air is =
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