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Gitterligning
13. november 2005 af
Beiss (Slettet)
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Har lidt problemer med at finde ud af hvorledes denne opgave løses.. Lidt hjælp ville være godt. :)
A good grating has 5900 lines per centimeter. If the grating is illuminated with white light ranging over wawelengths from 4000 Å to 7000 Å, it will produce a spectrum ranging over some interval of angles. From what angle to what angle does the first-order spectrum extend? The second-order spectrum? The third-order spectrum? Do these angular intervals overlap? Is the third-order spectrum complete?
NB: 1 Å = 0,1 nm
Har lidt problemer med at finde ud af hvorledes denne opgave løses.. Lidt hjælp ville være godt. :)
A good grating has 5900 lines per centimeter. If the grating is illuminated with white light ranging over wawelengths from 4000 Å to 7000 Å, it will produce a spectrum ranging over some interval of angles. From what angle to what angle does the first-order spectrum extend? The second-order spectrum? The third-order spectrum? Do these angular intervals overlap? Is the third-order spectrum complete?
NB: 1 Å = 0,1 nm
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