A thin prism of angle 1.2 and another thin prism of angle 1 are joined to make and arrangement for dispersion without devivation . If the refractive index of the material of the first prism is 1.5 , the refractive index of the material of the second prism is ?
A thin prism of angle 1.2 and another thin prism of angle 1 are joined to make and arrangement for dispersion without devivation . If the refractive index of the material of the first prism is 1.5 , the refractive index of the material of the second prism is ?