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Lakhmir Singh & Manjit Kaur - Physics

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Q. 283.6( 5 Votes )

How could you find the focal length of a convex lens rapidly but approximately?

Class 10th Lakhmir Singh & Manjit Kaur - Physics 5. Refraction of Light

Answer :

Change the distance of the screen from the convex lens until a clear inverted image of the window is formed on the screen. Measure the distance of the screen from the lens with a scale. This distance will be the focal length of convex lens.

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