The eyepiece of a refracting telescope (see Fig.34.53 in the textbook) has a foc

Question

The eyepiece of a refracting telescope (see Fig.34.53 in the textbook) has a focal length of 8.50 cm . The distance between objective and eyepiece is 1.70 m , and the final image is at infinity.

Part A

What is the angular magnification of the telescope?

The eyepiece of a refracting telescope (see Fig.34.53 in the textbook) has a focal length of 8.50 cm . The distance between objective and eyepiece is 1.70 m , and the final image is at infinity.

Part A

What is the angular magnification of the telescope?

Explanation / Answer

focal length of eyepiece = fe = 0.085 m

length of the telescope = L = d = 1.7 m

magnification M = L/fe = 1.7/0.085 = 20

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