How to draw a ray diagram for a concave mirror?

To draw a ray diagram for a concave mirror, follow these steps:

1. Draw the concave mirror as a curved line with a focal point (F) in the middle.
2. Draw the object (usually an arrow) outside the mirror, beyond the focal point.
3. Draw three rays: one parallel to the principal axis that reflects through the focal point, one through the focal point that reflects parallel to the principal axis, and one that goes through the center of curvature and reflects back on itself.
4. Where the reflected rays intersect is where the image will form.