Multiple Choice
A concave mirror forms a real image at 25.0 cm from the mirror surface along the principal axis.If the corresponding object is at a 20.0-cm distance,what is the mirror's focal length?
A) 1.43 cm
B) 16.7 cm
C) 7.14 cm
D) 11.1 cm
Correct Answer:

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Correct Answer:
Verified
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