Determine what is the focal length of the lens

Reference no: EM13689781

Here is the question which I am struggling on, please help me!

Ansel places an object 30.0 cm from a thin convex lens along the axis. If a real image forms at a distance of 10.0 cm from the lens, what is the focal length of the lens?

Please use as much detail as possible in your answer. Thanks.

Reference no: EM13689781

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