Determine what is the focal length of concave mirror

Reference no: EM13666267

A gemstone is placed 20.0 centimeter in front of a concave mirror and is within the focal point.

(a) When is the concave mirror replaced with a plane mirror, the image moves 15.0 centimeter toward the mirror. Determine what is the focal length of concave mirror?

(b) Determine where would the plane mirror have to be located relative to the gem so the image did not move?

Reference no: EM13666267

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