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The absorption spectrum of argon has a line at 515 nm what is the energy of this line?
3.86 x 10-19 J
What is the maximum resolution for a SEM microscope?
for a field emission gun you can go to 5-2 nm resolution
What is likely to happen if the growth in the rate of emission of carbon dioxide is not reduced?
n nm n n
What is the working temperature of mercury lamp?
The peaks of the emission from the ionized vaporof mercury are:-- 184.5 nm . . . UV-C-- 253.7 nm . . . UV-C-- 365.4 nm . . . UV-A-- 404.7 nm . . . violet-- 435.8 nm . . . blue-- 546.1 nm . . . green-- 578.2 nm . . . yellow-orange.The quantum wavelength of the lamp itself is much shorter than any of those.
Transition A produces light with a wavelength of 400 nm Transition B involves twice as much energy as A What wavelenth light does it produce?
Energy per photon is proportional to frequency. That tells us that it's alsoinversely proportional to wavelength.So if Photon-A has wavelength of 400-nm, then wavelength of Photon-Bwith twice as much energy is 200-nm .
What element has an emission line at 768 nm?
Potassium (K) has one hat 769 nm
What is the line spectrum of the hydrogen atom?
All in nM (nano metre, in vacuo): The Balmer series: (up to 3 eV energy) 397 410 434 486 656
Why does sodium chloride produce a yellow flame?
The cause is the sodium emission line at 589,3 nm.
The absorption spectrum of argon has a line at 515 nm what is the energy of this line?
3.86 x 10-19 J
What transition energy corresponds to an absorption line at NM?
3.96 10-19 j
What is the predominant wavelength associated with the emission from atomic sodium?
blue (42 nm)
What transition energy corresponds to an absorption line at 460 nm?
4.32 x 10^-19 j
Low pressure sodium street lights produce a very pure emission spectra consisting of a single spike What is the energy of a photon with the wavelength 589 nm?
3.36 x 10-19 J
Is line segment MN the same as line segment NM?
Yes. Because both "MN and "NM" are endpoints.
What is the maximum resolution for a SEM microscope?
for a field emission gun you can go to 5-2 nm resolution
What is likely to happen if the growth in the rate of emission of carbon dioxide is not reduced?
n nm n n
How do you calculate the wavelength of a red line at 670.8 nm?
670.8 nm is the wavelength.
