A 3-cm high object is in front of a thin lens. The object distance is 4 cm and the image distance is -8 cm. The image height is:

Name: A 3-cm high object is in front of a thin lens. The object distance is 4 cm and the image distance is -8 cm. The image height is:
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The magnification (m) is given by the formula m = - (image distance/object distance). Here, m = - (-8/4) = 2. The image height is the object height multiplied by the magnification: 3 cm * 2 = 6 cm.

A 3-Cm High Object Is in Front of a Thin