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

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

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

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

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

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

A convex lens is used to form an image of an object on a screen. If the upper half of the lens is blackened so that it becomes opaque, then