Refraction And Lenses Practice Test

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

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

Correct Answer:

It is upside down.

Explanation:

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.

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