If the central portion of a convex lens is wrapped with black paper symmetrically about its principal axis, then

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No image will be formed by the remaining portion of the lens.

The full image will be formed but it will be less bright.

The central portion of the image will be missing.

There will be two images each produced by one of the exposed portion of the lens.

answer is B.

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Detailed Solution

Since the aperture of the lens reduces, so brightness will reduce, but there will be no effect on the size of the image.

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