theviolent1 theviolent1

17-02-2020
Physics

contestada

An object is moved closer to a lens. Does the focal length of the lens increase, decrease, or stay the same?

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MathPhys MathPhys

17-02-2020

Answer:

Stay the same

Explanation:

The focal length of a lens is determined by its radius and by the indexes of refraction. The distance of the object does not affect the focal length.

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