Answer the following questions.

Describe the positions of the source of light with respect to a concave mirror in

1. Torch light .

2. Projector lamp.

3. Floodlight.

1.) Torch Light : The Source of light is placed at the Focus of the Concave Mirror because in Concave Mirror if the object is placed at Focus than its image is formed at the infinity hence we can get a light to longer distances .

2.) Projector Lamp: The source of light is placed at the Center Of Curvature because if object is placed at the center of curvature than its image is same as the size of the object, real. Hence image can be taken on the screen Like Whiteboard etc due to its real nature and size will also be sufficient not too large and too small.

3.) Flood Light: The Source of light is placed Beyond The Centre Of Curvature because the image formed is real and Magnified. hence we can get wider area of light.