Choose the one alternative that best completes the statement or answers the question. -A plant that is 4.1 cm tall is 10.3 cm from a converging lens. You observe that the

Choose the one alternative that best completes the statement or answers the question.
-A plant that is 4.1 cm tall is 10.3 cm from a converging lens. You observe that the image of this plant is virtual and 6.2 cm tall. What is the focal length of the lens?
A) 30 cm
B) 6.8 cm
C) 16 cm
D) -30 cm
E) -16 cm

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