– If the refractive index of the material of the crosses lens is 1.5, the spherical aberration will be minimum when the ratio of the radius of curvature R1/R2 is equal to …..
A. 1/9
B. -1/9
C. 1/6
D. -1/6
Answer:D
– If the refractive index of the material of the crosses lens is 1.5, the spherical aberration will be minimum when the ratio of the radius of curvature R1/R2 is equal to …..
A. 1/9 B. -1/9 C. 1/6 D. -1/6