A glass slab is placed between an object 0 and an observer E

Last updated: 6/8/2023

A glass slab is placed between an object 0 and an observer E with its refracting surfaces AB and CD perpendicular to the line OE The refractive index of the glass slab changes with distance y from the face AB as Ho 1 y Thickness of the slab ist Find how much closer compared to original distance the object appears to the observer Consider near normal incidence only 4 D 0