Question

1. which describes how to generate a real image of an object using a concave mirror? (1 point)

the object must be closer to the mirror than the focal point.
the object must be placed behind the mirror.
the object must be farther from the mirror than the focal point.

Explanation:

For a concave mirror, when the object is placed farther from the mirror than the focal point (\(u>f\)), the image formed is real. When the object is closer to the mirror than the focal point (\(u < f\)), the image is virtual. Placing the object behind the mirror is not a valid case for generating an image of an object in the usual sense of object - mirror interaction for image formation.

Answer:

The object must be farther from the mirror than the focal point.