A seed is 15 mm in front of a converging lens, and the image of the seed is 4.0 mm behind the lens. What is the focal length of the lens?
A) 11 mm
B) 3.2 mm
C) 3.8 mm
D) 5.5 mm

Question

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The Answer of A seed is 15 mm in front of a converging lens, and the image of the seed is 4.0 mm behind the lens. What is the focal length of the lens?
A) 11 mm
B) 3.2 mm
C) 3.8 mm
D) 5.5 mm

A Seed Is 15 Mm in Front of a Converging