Page 3 - 10-phy-12 Geometrical Optics

Conclusions

Post Lab. 1. Refractive index of medium 2 with respect to Normal
Activities medium 1 is 2.4. What will be the value of

angle x. Medium - 1
_________________________ 50°

_________________________ x
Medium - 2

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2. A transparent solid with refractive index n = 1.65 is immersed in a
liquid of exactly the same refractive index. The solid disappears.
Explain this phenomenon.
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3. Find the refractive index of the glass slab by applying geometrical

construction on Fig. 12.1.1 without measuring the angle of incidence
and angle of refraction.

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4. How does this experiment prove the validity of first law of refraction?
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