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. [3 Marks]
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Solution
Minimum two rays are required for locating the image formed by a concave mirror for an object. [1 Mark]
Ray diagram for the formation of a virtual image by a concave mirror:
[2 Marks]