Astronomical Telescope

Rarely Tested

Astronomical Telescope

### Magnifying Power

$$M=\frac{f_o}{f_e}$$

### Terminologies

- fo → Focal length of objective lens.

- fe → Focal length of eyepiece.

### Conditions / Special Cases

For normal adjustment:

$$L=f_o+f_e$$

### Usage

- Used in telescope problems.

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