An object is placed 10 cm in front of a concave mirror with a 20-cm focal length. Determine the image location (in cm).
A) −20
B) −15
C) −10
D) −5
E) 6.7

Name: An object is placed 10 cm in front of a concave mirror with a 20-cm focal length. Determine the image location (in cm). A) −20 B) −15 C) −10 D) −5 E) 6.7
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Question

Quizplus · Accepted Answer

Using the mirror equation 1/f = 1/do + 1/di, where f = -20 cm and do = -10 cm, we find di = -20 cm.

An Object Is Placed 10 Cm in Front of a Concave