What is the lateral shift of a ray refracted through a parallel-sided glass slab of thickness ‘h’ in terms of the angle of incidence ‘i’ and angle of refraction ‘r’, if the glass slab is placed in air medium ?
1
\(\frac{\mathrm{h} \tan (\mathrm{i}-\mathrm{r})}{\tan \mathrm{r}}\)
2
\(\frac{h \cos (i-r)}{\sin r}\)
3
h
4
\(\frac{h \sin (i-r)}{\cos r}\)