Spherical Mirrors: A concave spherical mirror has a focal length of magnitude 20 cm. An object is placed 10 cm in front of the mirror on the mirror's axis. Where is the image located?
A. 20 cm behind the mirror
B. 20 cm in front of the mirror
C. 6.7 cm behind the mirror
D. 6.7 cm in front of the mirror
Answer: A
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