c
અહી \( A = 15^o, A' = ?, w = 0.03, w' = 0.02, \mu = 1.65, \mu'= 1.52,\)

\( + ' = 0\)

\((\mu - 1) A + (\mu' - 1) A' = 0 ⇒ (1.65 - 1) 15^o + (1.52 - 1) A'= 0\)

\( \Rightarrow \,\,A'\,\, = \,\,\frac{{ - 0.65\,\, \times \,\,\,15}}{{0.52}}\,\,\, = \,\, - {18.75^ \circ }\)

ઋણ નિશાની બતાવે છે કે બે પ્રિઝમને વિરુદ્ધમાં જાડવા જાઈએ.
ચોખ્ખુ કોણીય વિયોજન (અંતર)

\(({\mu _v} - {\mu _r})\,\,A\,\, + \,\,(\mu _v^{'}\, - \,\,\,\mu _r^{'})\,\,A'\,\,\, = \,\,\omega \,\,(\mu  - 1)\,\,A\,\, + \,\,\omega '\,\,(\mu ' - 1)\,\,A'\,\,\)

\( = \,\,0.03\,\,(1.65\,\, - \,\,1)\,\,{15^ \circ }\,\, + \,\,0.02\,\,(1.52\,\, - \,\,1)\,\,( - {18.75^ \circ })\,\,\)

\( = \,\,0.2925\,\, - \,\,0.195\,\, = \,\,{0.0975^ \circ }\)