Question: The image of an object located 30 cm from a mirror is formed on a screen located 20 cm from the mirror. (a) The mirror

The image of an object located 30 cm from a mirror is formed on a screen located 20 cm from the mirror.
(a) The mirror is (1) convex, (2) concave, (3) flat. Explain.
(b) What is the mirror’s radius of curvature?

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