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Question:

Student obtains a blurred image of a distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens. Away from the screen. Either towards or away from the screen depending upon the position of the object. To a position very far from the screen. Towards the screen.

Away from the screen

Either towards or away from the screen depending upon the position of the object

To a position very far from the screen

Towards the screen

Solution:

To obtain a distinct image on the screen, student should have to move lens towards the screen, because second focus will behave as screen.