A jeweler's lens of focal length 2.7 cm is employed as a magnifier. With the lens held close to the eye, find out the following.
(i) Determine the angular magnification if the object is at the focal point of the lens?
(ii) Determine the angular magnification if the image formed by the lens is at the near point of the eye (25 cm)?
(iii) Determine the object distance giving the highest magnification?