An astronomical telescope of magnifying power 10 consists of two thin lenses 55 cm apart. Calculate the focal length of the lenses.

Explanation

To solve the problem of finding the focal lengths of the lenses in an astronomical telescope with a magnifying power of 10 and a distance of 55 cm between the lenses, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values:**
- Magnifying power (M) = 10
- Distance between the lenses (d) = 55 cm

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