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How much energy will be received when 3.2 moles of light with a wavelength of 650nm is absorbed?
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What is the index of refraction of a material in which the speed of light is 1.240 108 ms?
wavelength in vacuum/ wavelength in material = n 650nm/450nm= 1.44=n
What kind of electromagnetic wave does a CD player?
Digital Versatile Disc (DVD) uses 650nm wavelength laser diode light (part of the electromagnetic spectrum, in visable light section) which allows us to see it. CD uses 780nm wavelength, just outside of the electromagnetic spectrum, hence why we cannot 'see' it, only hear.
Why is green light not absorbed by plants?
Chlorophyll absorbs light and provides the energy for photosynthesis. The wavelength in which chlorophyll works best is in the red and blue range, and therefore does not absorb the green wavelength which is why leaves appear green. There are 2 chlorophyll at work - "a" and "b". They both operate in a slightly different frequency, thus increasing the total energy use from the sun. Chlorophyll "a" operates in the 400-450 & 650-700nm frequencies (purple and red) while "b" operates in the 450-500 & 600-650nm frequencies (blue and orange). They also generally exist in a 3 to 1 ratio, a to b. The gap left (500 - 600nm) is the green zone. In some tree's leaves, the chlorophyll "a" is less dominant, therefore there is an increase in the amount of purple and red wavelengths reflected, hence the leaves are more purple in colour, while the tree is still able to photosynthesize.
Why can humans not see infrared radiation?
Based on evolution it has never been necessary for our existence so we would not have developed this. Others that benefit from it have, like the kestrel, and a species of shrimp for example can see into the ultraviolet spectrum.
What is the wavelength of orange light?
650nm
What does the nm in 650nm laser diode mean?
"nanometer" or billionths of a meter. 650 nanometers is the wavelength of the light produced by the diode.
How much does a 100000 light year ray of light weigh?
Light has mass since it has energy. Energy depends on the wavelength/frequency. Einstein and Planck get credit for working this out. Using red light of wavelength 650nm travelling in a vacuum we get a mass of 3.4x10^-36 kg. The weight depends on the gravity, but on Earth that would weigh roughly 3.332x10-35 N.
What is the index of refraction of a material in which the speed of light is 1.240 108 ms?
wavelength in vacuum/ wavelength in material = n 650nm/450nm= 1.44=n
What color will a red object appear if only Red light is shone on it?
It will appear somewhat Orange. This is due to the roughly 650nM wavelength from the red light and the reflection of the yellow at around 380nM.
What is the wave length of light brown colour?
650nm
What color would a yellow shirt appear when exposed to red light?
The visible red light has a wavelength of about 650 nm. At sunrise and sunset, red or orange colors are present because the wavelengths associated with these colors are less efficiently scattered by the atmosphere than the shorter wavelength colors (e.g., blue and purple). A large amount of blue and violet light has been removed as a result of scattering and the longwave colors, such as red and orange, are more readily seen.
What kind of electromagnetic wave does a CD player?
Digital Versatile Disc (DVD) uses 650nm wavelength laser diode light (part of the electromagnetic spectrum, in visable light section) which allows us to see it. CD uses 780nm wavelength, just outside of the electromagnetic spectrum, hence why we cannot 'see' it, only hear.
Why is green light not absorbed by plants?
Chlorophyll absorbs light and provides the energy for photosynthesis. The wavelength in which chlorophyll works best is in the red and blue range, and therefore does not absorb the green wavelength which is why leaves appear green. There are 2 chlorophyll at work - "a" and "b". They both operate in a slightly different frequency, thus increasing the total energy use from the sun. Chlorophyll "a" operates in the 400-450 & 650-700nm frequencies (purple and red) while "b" operates in the 450-500 & 600-650nm frequencies (blue and orange). They also generally exist in a 3 to 1 ratio, a to b. The gap left (500 - 600nm) is the green zone. In some tree's leaves, the chlorophyll "a" is less dominant, therefore there is an increase in the amount of purple and red wavelengths reflected, hence the leaves are more purple in colour, while the tree is still able to photosynthesize.
How do you make a driver circuit for a 200mw 650nm laser diode?
ghfjhfjgfhjfgjfgfghf
Is 650nm far?
not definite depending on what you are analysising Its 650*10-9
How far is 650nm?
That's actually fairly meaningless, 1nm is one nanometre, there are one billion (1 000 000 000) nanometres in one metre. There are 1 609 metres in one mile. The number of nanometres in one mile is to big to be really meaningful.
