A real image formed by a lens of a diamond ring is which of the following?

• A. It is upside down.
• B. It could be captured on film.
• C. It is larger than the actual ring.
• D. It was formed by a concave lens.

Answer: (A)

Real images are formed when light actually converges to a point after passing through the lens, so the rays cross. For a converging (convex) lens, this crossing causes the image to invert relative to the object. So a real image of a diamond ring would appear upside down. That inversion is the defining feature of a real image, unlike virtual images which stay upright. It’s also true that real images can be projected onto film or a screen and that their size can be larger or smaller depending on distance, but the key point here is the inverted orientation. A concave lens, in standard setups, does not produce a real image of a real object.