Ellen places an object 48.4 cm from a concave lens. If a virtual image appears 24.6 cm from the lens on the same side as the object, what is the focal length of the lens?

a. –16.3 cm
b. –50.0 cm
c. 732 cm
d. –23.8 cm
e. –36.5 cm


b

Physics & Space Science

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