Physics

Problem

A ray in air strikes a

4\,\text{mm}

-thick glass slab (

n = 1.60

) at an angle of

30^{\circ}

with the normal. Immediately beyond the glass is a

6\,\text{mm}

-thick plastic slab (

n = 1.45

) whose faces are parallel to those of the glass. After passing through both slabs, the ray re-enters air. What is the lateral displacement between the original incident ray and the final emerging ray? a)

0.65\,\text{mm}

1.1\,\text{mm}

0\,\text{mm}

2.3\,\text{mm}

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