Choose the one alternative that best completes the statement or answers the question. -A concave spherical mirror has a focal length of magnitude 20 cm. An object is placed 30 cm

Choose the one alternative that best completes the statement or answers the question.
-A concave spherical mirror has a focal length of magnitude 20 cm. An object is placed 30 cm in front of the mirror on the mirror’s axis. Where is the image located?
A) 12 cm behind the mirror
B) 60 cm behind the mirror
C) 12 cm in front of the mirror
D) 60 cm in front of the mirror

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