A prism (( =1.5) ) has the refracting angle of (30^ ). The deviation of a monochromatic ray incident normally on its one surface will be (given, ( 48^ 36^ =0.75 ))

Step-by-step solution

The given situation is shown in the following figure. For the surface (A B ), ( 1 = i e 1 = 30^ e ) ( array rlrl & e = 30^ =1.5 1 2 =0.75 & = 48^ 36^ [ 48^ 36^ =0.75 ] & e =48^ 36^ array ) From figure angle of deviation, ( =e-i=48^ 36^ -30^ =18^ 36^ )