A concave mirror has a focal length of 20 cm.What is the magnification if the object's distance is 100 cm?
A)1/2
B)1/4
C)-2
D)4
E)-1/4

Name: A concave mirror has a focal length of 20 cm.What is the magnification if the object's distance is 100 cm? A)1/2 B)1/4 C)-2 D)4 E)-1/4
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The Answer of A concave mirror has a focal length of 20 cm.What is the magnification if the object's distance is 100 cm?
A)1/2
B)1/4
C)-2
D)4
E)-1/4

A Concave Mirror Has a Focal Length of 20 Cm