how we can perfectly define "light"?

Answer 1

Main Entry: 1light
Pronunciation: 'lIt
Function: noun
Etymology: Middle English, from Old English lEoht; akin to Old High German lioht light, Latin luc-, lux light, lucEre to shine, Greek leukos white
1 a : something that makes vision possible b : the sensation aroused by stimulation of the visual receptors c : electromagnetic radiation of any wavelength and traveling in a vacuum with a speed of about 186,281 miles (300,000 kilometers) per second; specifically : such radiation that is visible to the human eye
2 a : DAYLIGHT b : DAWN
3 : a source of light: as a : a celestial body b : CANDLE c : an electric light
4 archaic : SIGHT 4a
5 a : spiritual illumination b : INNER LIGHT c : ENLIGHTENMENT d : TRUTH
6 a : public knowledge b : a particular aspect or appearance presented to view
7 : a particular illumination
8 : something that enlightens or informs
9 : a medium (as a window) through which light is admitted
10 plural : a set of principles, standards, or opinions
11 : a noteworthy person in a particular place or field
12 : a particular expression of the eye
13 a : LIGHTHOUSE, BEACON b : TRAFFIC LIGHT
14 : the representation of light in art
15 : a flame for lighting something (as a cigarette)
- in the light of
1 : from the point of view of
2 or in light of : in view of

Answer 2

Light: energy producing brightness; the energy producing a sensation of brightness that makes seeing possible

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Answer 3

Light Is Energy seen as Visible light or felt as Heat etc released from the fusion of hydrogen and other elements in stars, visible light that you refer to is a small section of broader spectrum that as well as V light includes xrays, radio waves etc.

It is very basically energy released from fusion that can be read across a broad spectrum.

Answer 4

it is chemistry question

so.. light is energy emitted in the form of radiation from an exothermal reaction.

refer Stephen Hawkin for accurate difinition

Answer 5

light can be explained as that region of rays that we can see and are considered as visible spectrum which ranges from 400 - 700 nm.

Answer 6

define perfectly....can't be done

Answer 7

Do you mean as in pigment or radiative?

Answer 8

not so heavy