Asked by Anonymous

what is the energy in joules of one quantum of 55.4 nm
Answered by DrBob222
E = hc/wavelength
wavelength in meters.
Answered by Anonymous
how do i solve this ?
Answered by DrBob222
Substitute h (Planck's constant), c = speed of light, and wavelength in meters. E will be in joules.
Answered by Anonymous
what is h?
Answered by DrBob222
Do you have a text? notes? can you google.
h = Planck's constant = 6.626E-34 J.sec
c = speed of light = 3E8 m/s
1 m = 1E9 nm.
Answered by Anonymous
dont you think if i had notes, i wouldnt be on this site................ jerk-off
Answered by DrBob222
To be honest about it I thought that was the first constant you memorized on the first day of class. Anyway, you have it now. I'll be glad to check your work if you care to post it.
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