Question

When a glass slab is placed on a cross made on a sheet, the cross appears raised by 1 cm. The thickness of the glass is 3 cm. Then the refractive index of glass is :

A

B

C

D

Medium
Solution
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Correct option is B)

Separation (x) = 1 cm
Thickness (t) = 3 cm
Refractive index is given by the formula,
Substituting the values,
The refractive index of the glass slab is .

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