Question

calculate the angle of deviation for the thin prism of Glass n is equal to (n: 1.5) and having refractive angle 8 degree​

Answer 1

Answer:

A similar problem being solved before using formulae [sin{(A+Dm)/2}]/sinA/2=refractive index

=>sin{(60+Dm)/2}/sin30°=1.5

=>sin{30+(Dm/2)}=1.5×(1/2)=0.75

=>30°+(Dm/2)=sin-1(0.75)=47.73°

=>(Dm/2)=47.73–30=17.73°

=>Dm=17.73×2=35.46°