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An Object,located 90 Cm from a Concave Lens,forms an Image

Question 72

Multiple Choice

An object,located 90 cm from a concave lens,forms an image 60 cm from the lens on the same side as the object.What is the focal length of the lens?

A) -36 cm
B) -75 cm
C) -180 cm
D) -150 cm

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