A converging lens is used to form an image on a screen. When the upper half of the lens is convered by an opaque, screen then (A) Half the image will disapper (B) Completeimage will be formed (C ) intensity will image will decrease (D) Intensity of image will increase

A converging lens is used to form an image on a screen. When the upper

1.	A converging lens is used to form an image on a screen. When the upper half of the lens is convered by an opaque, screen then (A) Half the image will disapper (B) Completeimage will be formed (C ) intensity will image will decrease (D) Intensity of image will increase
Answer» a & d are correct b & d are correct a & C are correct b & c are correct Answer :D