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2.8 Exercise 13

Avg difficulty 2.5

Unless otherwise stated, the lens-to-retina distance is 2.00 cm.

A 7.5×7.5 \times binocular produces an angular magnification of −7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0-cm focal length, what is the focal length of the eyepiece lenses?

OpenStax University Physics Volume 3, 2.8 Microscopes and Telescopes, exercise 13

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Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.