A real object is 30 cm from a lens that has a negative focal length f = -20 cm. The image is

Name: A real object is 30 cm from a lens that has a negative focal length f = -20 cm. The image is
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Question

Quizplus · Accepted Answer

A lens with a negative focal length is a diverging lens, which always forms a virtual image. Using the lens formula (1/f = 1/v - 1/u), where u = -30 cm (object distance) and f = -20 cm, we find v = -12 cm, indicating a virtual image 12 cm from the lens.

A Real Object Is 30 Cm from a Lens That