A) Find the ABCD matrix for the thick lens in the figure, made of material n surrounded by air, n= 1. The lens has curvatures R and R2 and thickness d. Keep d and n arbitrary. R D=1 d = 1-(1-1) 4 R2 ANS = -R+ R+d() (n-1). RR n = 1 PR 1+ (1) B) Find the ABCD matrix for the thick lens in Figure (1) if the thickness between the two surfaces is ignored (d = 0), and the focal length f is given by the lens maker's formula: 1 f --- R1 R2]