| 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 |
Answer:
(b) lens and the screen only
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