60) An SSRI has the following focal lengths: object- space primary focal length f = -0.2 m and image- space secondary focal length f = 0.3 m. The object space is air with, n = 1.0, and the image space is glass with n' = 1.5. What is the refractive power F of this interface? %3D a) -5.0 D b) -3.3 D c) -2.0 D d) +2.0 D e) +3.3 D f) +5.0 D 68) The single flat refracting interface shown below has . air glass zero curvature and ze radius of curvature a) b) infinite curvature and zero radius of curvature c) zero curvature and infinite radius of curvature d) infinite curvature and infinite radius of curvature flat surface

60) An SSRI has the following focal lengths: object- space primary focal length f = -0.2 m and image- space secondary focal length f = 0.3 m. The object space is air with, n = 1.0, and the image space is glass with n' = 1.5. What is the refractive power F of this interface? %3D a) -5.0 D b) -3.3 D c) -2.0 D d) +2.0 D e) +3.3 D f) +5.0 D 68) The single flat refracting interface shown below has . air glass zero curvature and ze radius of curvature a) b) infinite curvature and zero radius of curvature c) zero curvature and infinite radius of curvature d) infinite curvature and infinite radius of curvature flat surface