A 1 cm object is placed 20 cm from a lens. The lens forms a real and inverted image of size 1.5 cm. What is the focal length of the lens?
A) 8.0 cm
B) 12 cm
C) 16 cm
D) 20 cm
E) 24 cm

Name: A 1 cm object is placed 20 cm from a lens. The lens forms a real and inverted image of size 1.5 cm. What is the focal length of the lens? A) 8.0 cm B) 12 cm C) 16 cm D) 20 cm E) 24 cm
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Using the lens formula and magnification, we find the focal length to be 12 cm.

A 1 Cm Object Is Placed 20 Cm from a Lens