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Question
What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
Solution
A minimum of two rays are required for locating the image of an object formed by a concave mirror.
When an object is placed between the focal point and the pole of a concave mirror, a virtual image is formed(as shown in the figure).
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