Question

The magnifying power of a telescope is the ratio of an object's angular diameter
to its naked eye diameter. This depends on the focal length of both lenses.
Magnification = focal length of objective lens / focal length of eyepiece
lens.A small refracting telescope has an objective of focal length 100 cm. If
the eyepiece has a focal length of 4.0 cm, what is the magnification of the
telescope?
A) 0.25 cm
B) 25 cm
C) 2.5 cm
D) 250 cm​

Answer 1

Answer:

Explanation:

The magnifying power of a telescope is the ratio of an object's angular diameter to its naked eye diameter. This depends on the focal length of both lenses. Magnification = focal length of objective lens / focal length of eyepiece lens. A small refracting telescope has an objective of focal length 100 cm.