Answer: Plane mirror.
- A Concave mirror
- B Convex mirror
- C Plane mirror
- D Convex lens
Correct answer: C. Plane mirror
Explanation: Plane mirror always forms a virtual, erect, laterally inverted image of the same size as the object.
Concave mirror ray construction: a ray parallel to the axis reflects through F, and a ray through F reflects parallel, locating the inverted real image. Image: Maxmath12, CC0, via Wikimedia Commons.
Concept context
Reflection, refraction, lenses, mirrors, total internal reflection.