Question

State three rules for drawing geometric images images in front of a concave mirror.

Answer 1

Rules for drawing geometric images infront of a concave mirror are:

1.if the ray incidents on the concave mirror parallel to the principal axis then the ray will reflect through the focus.

2. if the ray incidents on the concave mirror through focus it will reflect parallel to the principal axis.

3.if the ray incidents on the concave mirror through centre of curvature then the light will be reflected through the way of incidence.

4.if it incidents at the pole of the mirror then it will be reflected according to the law of reflection.