(a)

Angular Magnification:

$\overline{){\mathbf{M}}{\mathbf{=}}{\mathbf{-}}\frac{{\mathbf{f}}_{\mathbf{o}}}{{\mathbf{f}}_{\mathbf{e}}}}$

f_{o} = R/2 = 2.4m/2 = 1.2m(100cm/1m) = 120 cm

f_{e} = 3.2 cm

Problem 10: A small telescope has a concave mirror with a 2.4 m radius of curvature for its objective. Its eyepiece is a 3.2 cm focal length lens

Randomized Variables

R = 2.4 m

f_{e} = 3.2 cm

Part (a) What is the telescope's angular magnification?

Part (b) What angle (in degrees) is subtended by a 25,000 km diameter sunspot? Assume the sun is 1 .50 × 108 km away

Part (c) what is the image angular size (in degrees) in this telescope?

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