A converging lens is used to form an image on | vedclass

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(D) When the upper half of the lens is covered,the light rays from the object still pass through the remaining lower half of the lens.Since every poin

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Complete image will be formed of decreased intensity

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(D) When the upper half of the lens is covered,the light rays from the object still pass through the remaining lower half of the lens.Since every point on the object sends light rays to all parts of the lens,the lower half of the lens is sufficient to form the complete image of the object at the same position.However,because the total amount of light passing through the lens is reduced (as half of the aperture is blocked),the intensity of the image decreases.Therefore,the complete image is formed,but with decreased intensity.

$A$ converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen,

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