Question #155254

You wish to fom an enlarge image of an illuminated slide on a screen that is 0.55m from the slide.how far from the slide should you place a converging lens, with a focal length of 11cm in order to accomplish this?


1
Expert's answer
2021-01-13T11:35:17-0500

We can find the object distance from the lens from the thin lens equation:


1d0+1di=1f,\dfrac{1}{d_0}+\dfrac{1}{d_i}=\dfrac{1}{f},d0=11f1di,d_0=\dfrac{1}{\dfrac{1}{f}-\dfrac{1}{d_i}},d0=110.11 m10.55 m=0.137 m.d_0=\dfrac{1}{\dfrac{1}{0.11\ m}-\dfrac{1}{0.55\ m}}=0.137\ m.

Answer:

d0=0.137 m.d_0=0.137\ m.


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