Question

A person looks into the mirror by placing it close to his face. The image of his face was erect, laterally inverted and of the same size. Then, the mirror must be:
A. Plane
B. Concave
C. Convex
D. Plane or concave

Answer 1

Hint:A mirror is a reflecting surface that reflects off either a real image or a virtual image, creating light. The reflection of the same object is seen in the mirror while an object is positioned in front of a mirror. The target is the source of the incident rays and the reflected rays form the image. The pictures are categorised as either a real image or a composite image, depending on the interaction of light.

Complete answer:
Plane mirror: A plane mirror is a mirror that has a reflective (planar) flat surface. The angle of reflection equals the angle of incidence for light rays hitting a plane mirror. The incidence angle is the angle between the incident ray and the normal surface area (an imaginary line perpendicular to the surface). The image is assumed to be a virtual image in the case of plane mirrors. Virtual pictures are images that are produced in areas that are not necessarily reached by light.

Concave mirror: If a hollow sphere is broken into sections and the exterior surface of the cut part is painted, so as the reflection surface, it becomes a mirror with its inner surface. This mirror form is referred to as a concave mirror. A magnified and virtual image is acquired when the concave mirror is located very close to the object. However if we increase the distance between the object and the mirror, the image size decreases and a real picture is produced.

Convex mirror: If the cut portion of the empty sphere is painted from inside, the reflective surface becomes the exterior surface. This style of mirror is referred to as a convex mirror. For convex mirrors, virtual, erect, and diminished representations are often created, regardless of the distance between the object and the mirror.

From the above discussion we can see that option A is correct.

Note:Here we may be confused between plane and convex mirror. Plane mirrors create upright, simulated images that are the same size as the object. Digital, by the way, just means that behind the mirror the image is shaped instead of in front of it. And convex mirrors often generate images that are smaller than the source, standing, virtual and smaller.