Question

Describe the paosition of the source of light with respect to aconcave mirror in 1.torch light 2.projector lamp 3.floodlight

Answer 1

1. Torch Light:

The source of light is placed at the focus F.

2. Projector Lamp:

The source of light is placed at the center of curvature.

3. Floodlight:

The source of light is placed beyond the center of curvature