Tag: reflection of light and shadow

The ray of light which gets reflected from a polished surface is called reflected ray of light.

The ray of light which emerges after bouncing off the surface of a mirror is reflected ray.

According to definition, when a beam of light appears to meet at a point, after reflection, from a mirror then the image formed is known as virtual image. It cannot be obtained on a screen.

According to definition, the perpendicular drawn to the surface of the mirror at the point of incidence is known as normal ray.

Plane mirror shows lateral inversion. Left appears right and right appears left.

When a mirror forms an image, the left and right sides of the image are interchanged. This phenomenon is called lateral inversion as the image is laterally inverted.

Light can pass through transparent materials, such as glass or air. However it cannot pass through opaque materials and get reflected.

If the image always appears erect, then the mirror is either plane or convex. So, on the basis of the given options, the mirror is likely to be a plane mirror.

According to definition, 
i) A ray from the object, travelling towards the mirror is the incident ray.
ii) Angle between reflected ray and normal is the angle of reflection.
iii) The angle between reflecting surface and the reflected ray is known as the glancing angle of reflection.

According to definition of reflected ray and point of incidence, the ray which bounces off the surface of the mirror when the incident ray strikes the mirror is known as the reflected ray. The point at which incident ray meets the mirror is called the point of incidence.