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A Concave Mirror Has an Object Placed 40 Cm in Front

Question 64

Multiple Choice

A concave mirror has an object placed 40 cm in front of it. An image forms 60 cm in front of the mirror. What is the focal length of the mirror?


A) 60 cm
B) 120 cm
C) −120 cm
D) 100 cm
E) 24 cm

Correct Answer:

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