Write down the steps to determine the focal length of a given convex lens by obtaining a sharp image of a distant object?
Write down the steps to determine the focal length of a given convex lens by obtaining a sharp image of a distant object?
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(i) Select a suitable distant object
(ii) Hold the lens between the object and screen with its faces parallel to the screen.
(iii) Adjust the position of the lens to from a sharp image
(iv) Measure the image obtained between the lens and the screen.
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