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Which star would be hottest according to wien's law a star with maximum radiation at 750nm or 430 nm?
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What is the frequency of infrared ray?
Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwaves. Infrared radiation has wavelengths between about 750 nm and 1 mm. To convert wavelength to frequency, divide the speed of light by the wavelength. Speed of light is 300000000 m/s so 1mm corresponds to a frequency of 3E11 or 300GHz 750nm corresponds to a frequency of 4E14 or 400THz if I didn't drop a decimal point somewhere.
What measurement is used for the wavelengths of color?
Wavelengths of visible light are measured in nanometres. different colours are at different wavelengths. The range runs from violet at around 380nm to red at around 750nm.
What is the optimum wavelength of light absorbed by chlorophyll and why?
The optimum wavelength of chlorophyll is 430nm (in a light spectrum of 380nm-750nm going in 10 incements) We did a lab and it required us to determine the optimum wavelength of chlorophyll by testing the absorbance of light in 10nm increments from 380nm-750nm. Optimum wavelength is the wavelength of light that is absorbed best by a substance. So when we tested all the wavelngths 380-750 in 10 increments (380,390,400,410,420....) 430 had the highest absorbance. we used a Spec 20 machine to find the absorbance.
What is the longest wavelength and least energy in the visible spectrum?
The longest wavelength in the visible light spectrum is at the red end (at about 750nm) the lowest is violet (450nm). For a given intensity source the energy that can be generated is equal.The answer you are looking for is 720-680nm
How does the number of carbon atoms affect the degree of luminosity of the flame produced?
luminous flame is the flame when you have not opened the air hole of your Bunsen burner. it moves around a lot. it looks a bit like the flame you find on candles. only it's a lot bigger. non-luminous flame is the flame when you have opened the air holes of your Bunsen burner. it's really steady, coloured blue only with no orange around it. sometimes though, you'll see small orange flames going up and disappears. ---------------------------------------------- Luminous: emitting light A luminous flame is created from an exothermic reaction (normally oxidisation) between that also emits visible light (EM radiation of wavelength 390[violet light]-750nm[red light]). A non-luminous flame is one that doesn't (EM radiation of wavelength<390nm but >750nm) Basically, if a reaction is making lots of heat (your normal, yellow Bunsen burner flame is at about 700^C) and you can see it, it's luminous. If you can't see it (and the heat is there) then it's non-luminous) [The yellow Bunsen burner flame is from the oxidisation of carbon molecules left over from the methane-oxygen reaction. The blue one is too, it's just happening faster so the wavelength decreases - ask your local physics teacher or put 100nm into Wikipedia search]
What is the wavelength range of the visible spectrum for electromagnetic radiation?
380nm to 750nm.
What color of the visible light region has the longer wavelengths?
Red has the longest wavelength, up to 750nm.
What wavelength of light is not visible to the human eye?
Any that is shorter than about 400nm or longer than about 750nm isn't.
What wavelenghts are invisible to the human eye?
All wavelengths outside the range of 380 - 750nm are invisible to the human eye.
What is the frequency of infrared ray?
Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwaves. Infrared radiation has wavelengths between about 750 nm and 1 mm. To convert wavelength to frequency, divide the speed of light by the wavelength. Speed of light is 300000000 m/s so 1mm corresponds to a frequency of 3E11 or 300GHz 750nm corresponds to a frequency of 4E14 or 400THz if I didn't drop a decimal point somewhere.
What is the light that is not visible to the human eye?
Electromagnetic radiation having a wavelengths between 380 - 750nm is visible to the normal human eye. This region of the spectrum is called visible light. Radiation of any other wavelength cannot be seen with the naked eye
What measurement is used for the wavelengths of color?
Wavelengths of visible light are measured in nanometres. different colours are at different wavelengths. The range runs from violet at around 380nm to red at around 750nm.
What are the lengths of light waves?
The visible spectrum of the electromagnetic spectrum (visible light) goes from about 380nm to 750nm. Violet is 380nm or so ranging all the way to red which is 620nm to 700nm or so.
What is the optimum wavelength of light absorbed by chlorophyll and why?
The optimum wavelength of chlorophyll is 430nm (in a light spectrum of 380nm-750nm going in 10 incements) We did a lab and it required us to determine the optimum wavelength of chlorophyll by testing the absorbance of light in 10nm increments from 380nm-750nm. Optimum wavelength is the wavelength of light that is absorbed best by a substance. So when we tested all the wavelngths 380-750 in 10 increments (380,390,400,410,420....) 430 had the highest absorbance. we used a Spec 20 machine to find the absorbance.
What is the longest wavelength and least energy in the visible spectrum?
The longest wavelength in the visible light spectrum is at the red end (at about 750nm) the lowest is violet (450nm). For a given intensity source the energy that can be generated is equal.The answer you are looking for is 720-680nm
What is wavelength og light?
Visible 'light' ranges from roughly 380 to 750 nanometers (billionths of a meter). It can vary somewhat for different individuals' eyes. If electromagnetic radiation has a wavelength longer than about 750nm or shorter than about 380nm, you may still call it 'light' if you want, but the human eye doesn't respond to it.
All Electromagnetic radiation?
Transverse waves
