Question

Which mirror is used as a rear-view mirror in vehicles?

• A. A plane mirror, because it forms a virtual and erect image.
• B. A convex mirror, because it forms a virtual, erect and diminished image. And it also has more field of view than the plane mirror.
• C. A concave mirror, because it forms a real image.
• D. Lens is used instead of a mirror.

Answer 1

The correct option is B

A convex mirror, because it forms a virtual, erect and diminished image. And it also has more field of view than the plane mirror.

A convex mirror always forms diminished, virtual and erect image and it also allows more light to fall on it i.e., has more field of view. Thus, convex mirror is used as a rear-view mirror in vehicles.