For a thin prism kept in air

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

For a thin prism kept in air, which one of the following expressions gives the angular deviation

d

produced for small apex angle

A

and refractive index

\mu

of the prism material? (a)

(\mu+1)A

(b)

\dfrac{A}{\mu-1}

(c)

(\mu-1)A

(d)

\dfrac{(\mu-1)A}{\mu}