Question

why are concave lenses known as diverging lenses? concave lenses compress light into a single point. concave lenses group light together. concave lenses spread out and diverge light.

Explanation:

Concave lenses are curved inward. When light passes through them, the lens causes the light rays to bend outward or diverge. This is in contrast to convex lenses which converge (bring together) light. The term "diverging" directly relates to this spreading out of light rays.

Answer:

Concave lenses spread out and diverge light.