A small insect viewed through a convex lens is 2.0 cm from the lens and appears...

Question

Question

A small insect viewed through a convex lens is 2.0 cm from the lens and appears 2.5 times larger than its actual size.

Part A

What is the focal length of the lens?

Express your answer using two significant figures.

f =

cm

Answer 1

Answer #1

We know that the magnification is M- zl --2.5x2 cm We also know v lu iv v+ u -5x2 2-5 f 3.33 cm

Answer 2

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