|Suppose you have focused on a screen the image of candle flame placed at the farthest end of the laboratory table using a convex lens. If your teacher suggests you to focus the parallel rays of the sun, reaching your laboratory table/ on the same screen, what you are expected to do is to move the:|
|(a) lens slightly towards the screen|
|(b) lens slightly away from the screen|
|(c) lens slightly towards the sun|
|(d) lens and screen both towards the sun|
(a) lens slightly towards the screen
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