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Image Formation by Spherical Lenses

A converging ...

Question

A converging lens is used to produce an image of an object on a screen,object on a screen. What change is needed for the image to be formed nearer to the lens?

(a) increase the focal length of the lens
(b) insert a diverging lens between the lens and the screen
(c) increase the distance of the object from the lens
(d) move the object closer to the lens

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Solution

(c) Increase the distance of the object from the lens
As the object moves away from the lens, the image gets closer to the lens.

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