A student says that if a real image formed by a convex lens can no longer be seen on a screen after the screen is removed, then the image itself no longer exists. Which statement is correct?
AThe student is correct; a real image exists only when a screen is present
BThe image disappears because light rays stop converging after the screen is removed
CThe real image still exists in space because rays actually converge there; the screen only helps scatter light to the eye
DThe image becomes virtual as soon as the screen is removed
Answer & Solution
Correct answer: C. The real image still exists in space because rays actually converge there; the screen only helps scatter light to the eye
A real image is formed wherever rays from the object actually converge, whether or not a screen is placed there. The screen does not create the image; it only diffuses light so that the eye can receive it easily. So removing the screen does not destroy the image point in space.
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