Question

An object placed in front of a concave mirror with radius R = 20 cm has its image formed 20 cm behind the mirror. What is the object distance?

Answer 1

The answer is 40
Because distance depends
On location

Answer 2

Answer: 20 cm from the face of the mirror or 40 cm from the center from there the curvature is determined.

Step-by-step explanation:

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