A biconvex thin spherical lens has radii of 119 cm and 25 cm. The lens is made of glass with an index of 1. 531 and is immersed in a medium of index 1. 251. An object is placed 69cm in front of the 119 cm surface. [10 points] What is the focal length of the lens? b) [10 points] Locate the resulting image. c) [5 points] Determine the transverse magnification of the image. d) [5 points] Describe the image in details.