A student has obtained a point image of a distant object using the given convex lens. To find the focal length of the lens he should measure the distance between the : (A) lens and the object only (B) lens and the screen only (C) object and the image only (D) lens and the object and also between the object and the image

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Answers

2016-02-10T09:17:38+05:30
To find the focal length in such a case the distance between the image obtained and the optic centre should be measured
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2016-02-10T09:19:25+05:30
Option (A) is correct answer
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