A spectroscope with a diffraction grating having 633.0 lines / millimeter is used to measure the...
A spectroscope with a diffraction grating having 633.0 lines / millimeter is used to measure the angle of an emission line.
What is the spacing ( d ) between grating lines, expressed in nanometers? Report to the nearest whole number,without any units.
Homework Answers
There are 633.0 lines in 1 mm of the diffraction grating.
So the spacing between slits (d)=1 mm/633.0 =0.0015797788 mm=0.0015797788 x 10-3 m
d=0.0015797788 x106 x10-6 x 10-3 (multiply with 106 and 10-6)
d=1579.7788 x10-9 m
d
1580 nm i.e.
1580 (nearest whole number without units)
(1 nm=10-9 m and 1 mm=10-3 m)
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