a convex lens of focal length 10cm is painted with black at middle pirtion for 2 cm an object is placed at a distance of 20 cm from the lens then how many images are formed?
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Answer:no image
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no image 2 cm is much .....
if that much is painted the no image will ever be form
it's not a logical question
just check whether the data you have giver is correct or wrong
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