What is total magnification of three lenses of magnification `2, 3, 4` in contact ?

Explanation

To find the total magnification of three lenses with individual magnifications of 2, 3, and 4 when they are in contact, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Magnifications of Each Lens**:
- Let the magnification of the first lens (M1) be 2.
- Let the magnification of the second lens (M2) be 3.
- Let the magnification of the third lens (M3) be 4.
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