If the nearpoint distance of the jeweler is 218 cm and the

If the near-point distance of the jeweler is 21.8 cm , and the focal length of the magnifying glass is 7.50 cm, find the angular magnification when the diamond is held 5.79 cm from the magnifying glass. Assume the magnifying glass is directly in front of the jeweler\'s eyes.

Solution

M = theta\' / theta = N / f

= 21.8 cm / 7.50

M = 2.91