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Galileo’s Telescope Galileo’s first telescope used a
Chapter 27, Problem 75P(choose chapter or problem)
Galileo's Telescope Galileo's first telescope used a convex objective lens with a focal length \(f=1.7 \mathrm{~m}\) and a concave eyepiece, as shown in Figure . When this telescope is focused on an infinitely distant object, and produces an infinitely distant image, its angular magnification is \(+3.0\).
(a) What is the focal length of the eyepiece?
(b) How far apart are the two lenses?
Equation Transcription:
Text Transcription:
f=1.7 m
+3.0
Questions & Answers
QUESTION:
Galileo's Telescope Galileo's first telescope used a convex objective lens with a focal length \(f=1.7 \mathrm{~m}\) and a concave eyepiece, as shown in Figure . When this telescope is focused on an infinitely distant object, and produces an infinitely distant image, its angular magnification is \(+3.0\).
(a) What is the focal length of the eyepiece?
(b) How far apart are the two lenses?
Equation Transcription:
Text Transcription:
f=1.7 m
+3.0
ANSWER:
Step 1 of 3
(a)
Here we need to determine the focal length of the eyepiece. The focal lengths of the objective lens is given to be and the eyepiece be . The given telescope has angular magnification of .