A refracting telescope is used to view the Moon (diameter 3480 km, distance from Earth 385,000...
A refracting telescope is used to view the Moon (diameter 3480
km, distance from Earth 385,000 km). The focal lengths of the
objective and eyepiece are +2.45 m and +16.1 cm, respectively. (a)
What should be the distance between the lenses?
m
(b) What is the diameter of the image produced by the
objective?
cm
(c) What is the angular magnification?
Homework Answers
Distance= fo+fe
It is approximately 16.1cm + 2.45cm = 18.55 cm
=======================
B)d/D=f/S d= 3480,000 X 2.45 / 385,000,000 = 0.02214 m
= 2.35 cm
C)angular magniffication= (0.02214/0.161) / (3480,000/385000,000) =
15.21 times
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