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How do you find the focal length of a concave lens using a convex lens?

  • Physics - ,

    Use the convex lens to form a real image. Then place the concave lens in front of that image. The convex lens's image acts as an object with a negative value of do for the concave lens, which should now be able to form a real image behind it. Use the lens equation for solve for the f of the concave lense, which will be negavive

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