Question: An object with a height of 3.4 cm is 28 cm from a (thin) convex lens. The image is 56 cm from the lens on

An object with a height of 3.4 cm is 28 cm from a (thin) convex lens. The image is 56 cm from the lens on the same side as the object. What is the focal length?

Select the correct answer from the following list:

a) 5.60 cm

b) 1.87 dm

c) 1.87 cm

d) 5.60 dm

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