a ray of light moving along principal axis is falling on a concave mirror. draw the path of reflected ray. also state the values of angle of incidence and angle of redlection in this case.
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When a ray of light along the principal axis falls on a concave mirror it gets reflected and the image forms at the focal point of the mirror on the same side as the object.
The image is very small and inverted.
Therefore the angle of incidence will be equal to the angle of reflection.
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If a ray of light moving along principle axis is incident on concave mirror. It will reflect back in same direction. There are some rules to draw ray diagrams for concave mirror. Rule-3 states that if incident ray is passing through centre of curvature C it gets reflect back in same direction. As principle axis is perpendicular to concave mirror. Then angle of incidence and angle of reflection is 90°.
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