The focal length of a converging lens is 10 cm.What is the angular magnification of this lens if the image is viewed by a relaxed eye with a near point of 25 cm?
A)0.50
B)1.5
C)2.5
D)3.5
E)4.5

Question

Quizplus · Accepted Answer

The angular magnification (M) of a lens when the image is viewed by a relaxed eye is given by the formula M = D/f, where D is the near point of the eye (25 cm in this case) and f is the focal length of the lens (10 cm). Therefore, M = 25 cm / 10 cm = 2.5.

The Focal Length of a Converging Lens Is 10 Cm