A ray of light is incident normally on an equilateral prism of refractive index 3/2 calculate devition.
Ans) since the prism is equilateral therefore angle of prism is 60^{0} => angle of refraction is 30^{0}applying snell\''s law,,,,sini * 1=sin30^{0} *sqrt(3)=>sini=sqrt()3 / 2,=> i=60^{0}