Optics Ques 91

  1. What is the relation between the refractive indices $\mu _1$ and $\mu _2$ ? If the behaviour of light rays is as shown in the figure.

(1979)

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Answer:

Correct Answer: 91.$(\mu_1 < \mu_2)$

Solution:

Formula:

Refraction at Spherical Thin Lens:

  1. From first figure it is clear that

$ \quad \mu=\mu _1 $

From second figure it is clear that

$ \begin{aligned} & \mu<\mu _2 \\ \therefore \quad & \mu _1<\mu _2 \end{aligned} $



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