An object lies in front if a thick paral...

An object lies in front if a thick parallel glass slab, the bottom of which is published if the distance between m first two images formed by bottom surface is `4 cm` then find the thickness of the slab [Assume `n_(glass) = 3//2` paraxial rays].

2 cm

4 cm

6 cm

none of these

Text Solution

Verified by Experts

The correct Answer is:

The figure shows the image formation in different steps.
Given `2t =4`
`rArr t=2 cm`.

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