Determine what is the focal length of a lens

Reference no: EM13708566

Solve the all parts of given question:

Question: A light bulb is 3.2m from a wall.

Part A: What is the focal length of a lens that will form an image on the wall that is twice the size of the light bulb?

Part B: What is the position *measured from the bulb) of the lens?

I don't just need an answer, work and explanations/walkthrough would be much appreciated! Thanks.

Reference no: EM13708566

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