1.

A student obtained a sharp image of the grill of a window in the laboratory on a screen, using a convex lens. For getting better results, her teacher suggested focussing of a distant tree instead of the grill. In which direction should the lens be moved for this purpose to get a sharp image on the screen ?

Answer»

TOWARDS the screen
AWAY from the screen
behind the screen
very FAR away from the screen

Solution :NA


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