Draw ray diagram showing the image formation by a concave mirror when an object is placed:
At infinity

Explanation

To solve the question of drawing a ray diagram showing the image formation by a concave mirror when an object is placed at infinity, follow these steps:

### Step 1: Draw the Concave Mirror
Begin by drawing a concave mirror. The mirror should be represented as a curved line facing towards the object. Label the mirror as "Concave Mirror."

**Hint:** Remember that the reflective surface of the concave mirror is the inner side of the curve.

### Step 2: Draw the Principal Axis
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