A giant refracting telescope at an observatory has an objective lens of focal length 15 m . If an eyepiece of focal length 1.0 cm is used, what is angular magnification of the telescope ?

Explanation

To find the angular magnification of a giant refracting telescope, we can use the formula for angular magnification (M):

\[ M = \frac{f_o}{f_e} \]

where:
- \( f_o \) is the focal length of the objective lens,
- \( f_e \) is the focal length of the eyepiece.

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