Draw a ray diagram to show how a convex lens can be used as a magnifying glass.

Explanation

To draw a ray diagram showing how a convex lens can be used as a magnifying glass, follow these steps:

### Step-by-Step Solution:

1. **Draw the Principal Axis**: Start by drawing a horizontal line across your paper. This line is known as the principal axis.

2. **Draw the Convex Lens**: In the center of the principal axis, draw a convex lens. The lens should be shaped like an oval or a double-convex shape.

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