To view the craters of the moon, you can show a refreshing telescope from a lens with a focal length of 98.5 cm as its objective and a 12.9 cm focal length lens as its IPP determine the angular magnification of your telescope when you look at the moon

The angular magnification \( M \) of a telescope can be determined using the formula:

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

where:
- \( f_o \) is the focal length of the objective lens (in this case, 98.5 cm),
- \( f_e \) is the focal length of the eyepiece lens (in this case, 12.9 cm).

Substituting the given values:

\[
M = \frac{98.5 \, \text{cm}}{12.9 \, \text{cm}} = 7.64
\]

So, the angular magnification of your telescope when you look at the moon is approximately **7.64**.

Would you like more details or have any other questions?

Here are 5 related questions for further exploration:

1. How does changing the focal length of the eyepiece affect the magnification?
2. What is the significance of angular magnification in telescopes?
3. How do you calculate the field of view of a telescope?
4. What are the advantages and disadvantages of higher magnification in telescopes?
5. How does the aperture of the objective lens impact the telescope's performance?

**Tip:** When using a telescope, remember that higher magnification isn't always better. It can reduce the field of view and make the image dimmer, especially in telescopes with smaller apertures.

To view the craters of the moon, you can show a refreshing telescope from a lens with a focal length of 98.5 cm as its objective and a 12.9 cm focal length lens as its IPP determine the angular magnification of your telescope when you look at the moon.

Discover how to calculate the angular magnification of a telescope using lenses with a 98.5 cm focal length as the objective and a 12.9 cm focal length lens as the eyepiece. This step-by-step guide covers key concepts in optics and is suitable for students in Grades 9-12.

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