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A luminous object is seperated from a screen by distance d. A convex lens

A luminous object is seperated from a screen by distance d. A convex lens is placed between the object and the screen such that it forms a distinct image on the screen. The maximum possible focal length of this convex lens is

Options

(a) 4 d
(b) 2d
(c) d/2
(d) d/4

Correct Answer:

d/4

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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