Question

write rules of following day dlagram​

Answer 1

Answer:

the rules required to draw a ray diagram are

1.Always use a ruler while drawing ray diagrams. never draw free hand ray diagrams.

2.The distance b/w pole & focus and b/w focus and centre of curvature should be same on both the sides of lens/mirror.

3.Always draw arrow heads on the ray to show their path.

Answer 2

The rules used for drawing ray diagrams for the formation of an image by a concave mirror are:

Rule 1: If the incident ray is parallel to the principal axis then the reflected ray passes through the focus of the concave mirror.

Rule 2: If the incident ray passes through the focus of the concave mirror, the reflected ray is parallel to the principle axis.

Rule 3: If the incident ray passes through the centre of curvature of the concave mirror, the reflected ray traces the same path.