Question

Franny drew a diagram to compare images produced by concave and convex lenses.

2 overlapping circles, the left circle labeled Concave lenses and the right circle labeled Convex lenses. An X in the overlap.

Which belongs in the area marked X?

Real
Virtual
Larger than object
Upside down

Answer 1

Virtual.

Reason: Concave (diverging) lenses always form virtual, upright, reduced images. Convex (converging) lenses can form real, inverted images (when the object is beyond the focal length) or virtual, upright images (when the object is inside the focal length). So "virtual" is the property both can have.