Explain with a suitable diagram, how a concave mirror converges a parallel beam of light rays. Mark clearly the pole, focus and centre of curvature of concave mirror in this diagram.
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Three cases given and explained in the attachment.
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Explanation:
- A parallel beam of light rays is converged by the concave mirror, so all the light rays parallel to the concave mirror’s principal axis, join at the principal focus (F) after the mirror’s reflection.
- It is to be known that the curved mirror has the surface that could be concave or convex.
- Most of the curved mirrors have exteriors that have the shape like a sphere’s part. At times, other shapes are used in optical devices.
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