lnbrown5173 lnbrown5173

06-03-2024
Physics

contestada

What is the focal length of a convex lens of focal length 30 cm in contact with a concave lens of focal length 20 cm? Is the system a converging or a diverging lens? Ignore thickness of the lenses.
a) 12 cm, Converging
b) 50 cm, Diverging
c) 60 cm, Converging
d) 150 cm, Diverging

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