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if the upper half of a convex lens is painted black,, what difference will it cause in the real image formed by the lens???

if the upper half of a convex lens is painted black,, what difference will it cause in the real image formed by the lens???

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3 Answers

Ritvik Gautam
85 Points
10 years ago

The intensity of the image formed on the screen would be reduced by a factor of 2.

 

But there will be no change in the position of the image.

 

 

Please approve this answer!! :-)

Neer Varshney
76 Points
10 years ago

The image would be formed as such it was formed before of the same size

Riturambha
11 Points
5 years ago
Well when we cover any half of a mirror or lens then the focal lens is not changing. Therefore the position of image will not vary.  But since a half is covered rays approaching that part will not be reflected or refracted therefore image will be having half the intensity as the original one

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