what is the standard unit for light????????????

Answer 1

candela&lumens

Answer 2

Lumens = Total Flux
Candela = Intensity

If a light source emits one candela of luminous intensity into a solid angle of one steradian, the total luminous flux emitted into that solid angle is one lumen. Alternatively, an isotropic one-candela light source emits a total luminous flux of exactly 4π lumens. The lumen can be thought of casually as a measure of the total "amount" of visible light emitted.

Answer 3

The following quantities and units are used to measure the quantity or "brightness" of light.

SI photometry units:
..................................
Luminous energy/ Qv/ lumen second/ lm·s /units are sometimes called Talbots
Luminous flux /F /lumen (= cd·sr) /lm /also called luminous power
Luminous intensity /Iv /candela (= lm/sr) /cd /an SI base unit
Luminance/ Lv/ candela per square metre/ cd/m2/ units are sometimes called nits
Illuminance /Ev lux (= lm/m2)/ lx Used for light incident on a surface
Luminous emittance /Mv lux (= lm/m2) /lx/ Used for light emitted from a surface
Luminous efficacy / lumen per watt/ lm/W/ ratio of luminous flux to radiant flux; maximum possible is 683.002 .

Answer 4

What property of light are you measuring?
lufen is correct about measuring intensity.
Color is determined by frequency which is inversely related to wavelength.
A single 'particle' of light is called a photon.

Do any of these answer your question?

Answer 5

the unit for light is Lux

Answer 6

The light bulb. Light travels 185 or 186,000 miles per secound. I'm not sure which one out of the two it was.

Answer 7

One day, or about 12 hours, depending on where you live.

Answer 8

see:
http://physics.nist.gov/cuu/Units/current.html

Answer 9

lumen

Answer 10

candela