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A photon is the unit in which light comes. A bundle of them is a "ray" of light. Light sources like a light bulb emit astronomical numbers of them every second they are on. Please keep an open mind when dealing with light. Light can appear to be a little "particle" (the photon) or it can appear to be a wave (as light is an electromagnetic wave). How it appears depends on the experiment we use to look at light. This is called particle-wave duality, and it is a fundamental quantum mechanical principle that will have to be taken into account even at the level of high school physics. It doesn't seem to make sense to some folks when they are first confronted with the idea, but roll with it. Keep reading and asking questions.
What else can I help you with?
The candela is a unit of measurement of what?
A candela is a unit of measurement for light sources and light emissions. Light beams projects different color at different wavelengths, and a candela is used to measure the intensity of the light.
What is the unit of fluorescence intensity?
The unit of fluorescence intensity is known as FUs. These are unitless and instead shows the light that is emitted from the longer wavelength.
What is light energy measured in?
Light travels in the form of discrete paritcles called photons. These are measured by a unit called quantum.
Basic unit of length?
In Metric, the basic unit is a Meter from which all other metric units are derived. Common metric units are: Millimeter (mm) Centimeter (cm) Meter (m) Kilometer (km) For standard units, they all relate, but it is hard to weight any one over any others. Inch, Foot, Yard, Mile, etc. In Astronomy you will find: Astronomical Unit (AU) and is essentially equal to the distance from the Earth to the Sun (149,597,871 km). Light Year (the distance light travels in a year) You may also see Light Seconds and Light Minutes.
What is the largest practical unit of distance?
The biggest distance unit we know of that has a name is the ' Megaparsec ', equal to -- 1 million parsecs -- 3,262,000 light years (rounded) -- 19,175,510,080,000,000,000 miles (rounded) -- 153,404,080,700,000,000,000 furlongs (rounded) -- 101,246,693,200,000,000,000,000 feet (rounded) -- 1,214,960,319,000,000,000,000,000 inches (rounded) -- 3,085,999,210,000,000,000,000,000 centimeters (rounded)
Is a calorie a unit of light?
It's a unit of energy, not light or weight.
Which of the is not a unit of time leap year or light year?
A light-year is a unit of distance, not a unit of time.
Si unit for light intensity?
Light intensity is also known as luminosity. Candela is the si unit
Is a light year a unit of time True or false?
False the light year is not a unit of time it is a unit of distance true.
What is the standard unit for measuring the brightness of light, known as the kwe unit?
The standard unit for measuring the brightness of light is called the candela (cd), not the "kwe" unit.
Which is larger an astonomical unit or a light year?
A light year is larger than an astronomical unit.
How many seconds is 14890 light seconds?
A light second is a unit of distance, not a unit of time.
What is a unit of light called?
a photon
The candela is a unit of measurement of what?
A candela is a unit of measurement for light sources and light emissions. Light beams projects different color at different wavelengths, and a candela is used to measure the intensity of the light.
Would it take light years to finish homework?
A light-year is a unit of distance, not a unit of time.
How old is mira the star in light years?
"Light-year" is NOT a unit of time. It is a unit of length or distance - the distance light travels in a year.
Is a light year a unit of a distance or a unit of a time?
Both
