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What else can I help you with?
How many lumen are in 1 Joule?
1 lumen = 1 candela per steradian.1 candela = 1/683 watts per steradians (assuming 540nm light wavelength).Assuming that the light is collected from a single steradian:1 Lumen = 1 Candela -> = 1/683 Watt -> Watt = 683 Lumens1 Joule = 1 Watt per Second -> Watt = Joule/SecondHence:683 Lumen = 1 Joule/SecondUnder the above assumptions1 Lumen = 1/683 Joule/Second
What SI base unit is used to measure light?
The second.I see the "second" as a measure of time, not light.LUX, Lumen or Candela do ring a bell and something like watt per square meter..Yes the S.I. unit measure of light is a limen (lm) .lumen (lm)The SI derived unit for measuring the luminous flux of light being produced by a light source or received by a surface. The luminous intensity of a light source is measured in candela. One lumen represents the total flux of light emitted, equal to the intensity in candela multiplied by the solid angle in steradians (1/(4pi) of a sphere) into which the light is emitted. Thus the total flux of a one-candela light, if the light is emitted uniformly in all directions, is 4pi lumen.
What is te SI base unit for luinous intensity?
Intensity is measured in Candela. Candela is its SI unit.
What is brighter 2000 lumen watt bulb or a 1500 lumen bulb?
This question is ill posed. Lumen is a unit of measure for how much light comes from the lamp Watt is a unit of measure for how much energy is used by the lamp If the question were; "Which is brighter, a 2000 lumen bulb or a 1500 lumen bulb?" then the answer would be: The 2000 lumen bulb. I think the relation ship between lumen and watt is something like: Incandecent bulbs are 15w/lumen Flourecent bulbs use 40w/lumen LED bulbs are 70w/lumen The way to show the watt and lumen relationship is usually lumens (amount of light) per watt (energy consumption). This is like gas in your car (Miles or KM per Gallon or Liter). Incandescent bulbs have a maximum luminosity of 52 lumens/watt. Fluorescent bulbs range from 46 lumens/watt (CFL) to 100 lumens/watt (T5 and T8 tubes) LED bulbs range from 29 lumens/watt (older, low efficiency) to 100+ (XCree) and they are getting better.
How much candle power in 360 lumen?
Lumen and candlepower are not the same thing. Lumen measure the of light surrounds, like you would light a room with a lamp. Candlepower measures the light in a beam, like a flashlight beam. With a few assumptions you can convert lumen to candlepower. With these assumptions 360 lumen would be 28.6 candlepower.
Difference between artery and vein histologically?
arteries 've short lumen where as veins 've large lumen.
How many lumen are in 1 Joule?
1 lumen = 1 candela per steradian.1 candela = 1/683 watts per steradians (assuming 540nm light wavelength).Assuming that the light is collected from a single steradian:1 Lumen = 1 Candela -> = 1/683 Watt -> Watt = 683 Lumens1 Joule = 1 Watt per Second -> Watt = Joule/SecondHence:683 Lumen = 1 Joule/SecondUnder the above assumptions1 Lumen = 1/683 Joule/Second
What SI base unit is used to measure light?
The second.I see the "second" as a measure of time, not light.LUX, Lumen or Candela do ring a bell and something like watt per square meter..Yes the S.I. unit measure of light is a limen (lm) .lumen (lm)The SI derived unit for measuring the luminous flux of light being produced by a light source or received by a surface. The luminous intensity of a light source is measured in candela. One lumen represents the total flux of light emitted, equal to the intensity in candela multiplied by the solid angle in steradians (1/(4pi) of a sphere) into which the light is emitted. Thus the total flux of a one-candela light, if the light is emitted uniformly in all directions, is 4pi lumen.
What is the difference between Ash and Quinton catheters?
Ash is a split lumen, the Quentin is one lumen different out/in holes for each port on the same lumen. Do the same type of thing, just different execution.
What is the difference between candela and lux in terms of measuring light intensity?
Candela measures the brightness of a light source in a specific direction, while lux measures the amount of light that falls on a surface per unit area. Candela is a measure of luminous intensity, while lux is a measure of illuminance.
Can you convert lumen to candle power?
Not directly, as you are comparing apples with oranges in two senses: (a) a lumen is an SI unit, whereas a candlepower is an Imperial unit, and (b) lumens are used to measure luminous flux, whereas candlepower is used to measure luminous intensity.
What is the difference between an artery and a vein and what do they do?
Arteries are more elastic but have smaller lumen. They carry blood away from the heart. Veins are less elastic have larger lumen and have valves. They carry blood to the heart.
What is the difference between the lumen and cytosol within a cell?
The lumen is the interior space of a membrane-bound organelle, such as the endoplasmic reticulum or Golgi apparatus, while the cytosol is the fluid that surrounds organelles within a cell. The lumen is enclosed by a membrane, while the cytosol is the gel-like substance that fills the space between organelles.
What is the difference between the cytosol and the lumen in cellular compartments?
The cytosol is the liquid inside a cell where most cellular activities occur, while the lumen is the space inside a cellular compartment, such as an organelle, that is separate from the cytosol.
What is the difference between lumen and kelvin when it comes to measuring the brightness and color of light?
Lumen measures the brightness of light, while kelvin measures the color temperature of light. Lumen indicates how bright a light source is, while kelvin indicates the color appearance of the light, such as warm or cool.
How many footcandle is 1 candela per meter square?
Foot Candela is the measuring unit for illuminance while candela/meter squared is a measuring unit for luminance,which makes conversion not possible. conversion can be done for units of the same quantity, for example, illuminance units : ft candela = 10.764 lux. To know the difference between luminance & illuminance, you can take a look at http://www.tpub.com/content/gsacriteria/gsa_courtroom_lighting/gsa_courtroom_lighting0012.htm
What is the difference between lux and candela and how do they affect the measurement of light intensity?
Lux and candela are both units of measurement for light intensity, but they measure different aspects of light. Lux measures the amount of light that falls on a surface, while candela measures the brightness of a light source in a specific direction. Lux is used to determine the brightness of an illuminated area, while candela is used to measure the intensity of a light source. In essence, lux measures the light that is received, while candela measures the light that is emitted.
