"THIN LENS IMAGERY, CONVEX, TRANSVERSE MAGNIFICATION. . A diagram of the Problem is shown below. Surface is represented by 's'. ss s s s s M[T] + means erect image ╦ Y[O] s s ║······o·········s····s········o··········o S source point S F[O] s s F[I] Y[I] ║ P image point s s ╩ S[O] Source distance |·X[O]·|···f····· s s·····f···|····X[I]··| S[I] Image distance ss |--------S[O]------|-----------S[I]-------| Sign Convention: X[O] + means its left of F[O] focal_length < 0 X[I] + means its right of F[I] means Y[I], Y[O] + means above optical axis diverging lens. *** Answer(s) to problem *** (c) PCSCC, Inc., 1993 (a) First set F=0, N[L]=1.6, N[M]=1, R1=40 and R2=-40. Focal length =33.3 cm. Next type (space) s[i]=2*focal_length (enter). S[I]=S[O]=2*f=66.6 cm. Type any key to exit. ||A thin bi-convex lens of index 1.6 has equal radii of 40 cm in air. (a) Compute the focal length. (b) If the image is to be projected full-sizeon a white wall, what are the image and object distances? Type comma key to see answer. Type (F2) to return to application file."
