Question

write the rules for drawing a ray diagram by oberving the given figure​

Answer 1

Explanation:

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..

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Answer 2

Answer:

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.

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