Q3. What is the focal point of Lens ?
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Answer:
focal point is indicated at the place where the image is formed and this point is also indicated with f
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Explanation:
The focal point of a concave lens is the point where light rays parallel to the axis seem to diverge from after passing through the lens. The distance from the lens to this point is called the focal length of the lens. Diverging light rays striking a convex lens can be bent until they emerge parallel to the axis.
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