Question

Draw four rules of concave mirror

Answer 1

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Answer 2

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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.

Explanation:

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