Tag: nature and sources of light

Sun is a luminous object since it generates light of its own.

The reflection from a concrete sidewalk is a diffused reflection yes it is true as they are not a perfect reflecting surface.

ARROWS are used to specify the direction of propagation of a light.

Luminous objects are those which emit their own light. For example, sun and stars.

Self-luminous bodies are those bodies that produce light of their own.
Sun has its own light.

Sun is a natural source of light, which emits light of its own.

Light is:
(i) An electromagnetic radiation
(ii) A transverse wave
(iii) Massless

A source of light is any device serving as a source of illumination;

A burning candle produces light of its own

Earth doesn't have light of its own