How will the image formed by a convex lens be affected if the central portion of lens is wrapped in black paper ?

 answer: The full image will be formed, but it is less bright

Explanation

As a result of a huge number of rays from the object forming an image. As a result, if any part of the lens is obscured, an image will appear. When compared to an image created without covering the lens, the brightness of the image will be lowered. The whole image will be generated if the centrepiece of the lens is wrapped in black paper, although it will be less bright.

Additional information

Image formation by Convex Lens
Object location	Image location	Image nature	Image size
Infinity	At F2	Real and Inverted	Diminished
Beyond 2 F1	Between 2F2 and F2	Real and Inverted	Diminished
Between 2F1 and F1	Beyond 2F2	Real and Inverted	Enlarged
At F1	At infinity	Real and Inverted	Enlarged
At 2 F1	At 2F2	Real and Inverted	Same size
Between F1 and 0	On the same side as the object	Virtual and Erect	Enlarged