প্রতিসরনাংক সংক্রান্ত

A glass slab is placed in a medium of higher refractive index than glass. A light ray incident from one surface exits from opposite surface. Then, 

হানি নাটস

The effect of placing glass slab in a medium of higher index is that the emergent light ray will laterally shift in the opposite direction than that in air.

For first surface,

μ=sin(i)/sin(r)\mu = sin(i)/sin(r)............(1)

For second surface,

1/μ=sin(r)/sin(e)1/\mu = sin(r)/sin(e).........(2)

From (1) and (2),

sin(i)=sin(e)sin(i)=sin(e)

Hence, emergent ray is laterally shifted w.r.t incident ray. Thus, behavior is similar to glass slab in air.

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