Physics, 18.08.2019 04:20 isaiahromero15
For a wavelength of 420 nm, a diffraction grating produces a bright fringe at an angle of 24°. for an unknown wavelength, the same grating produces a bright fringe at an angle of 39°. in both cases the bright fringes are of the same order m. what is the unknown wavelength?
Answers: 1
we have to find unknown wavelength that is 
is angle of emergence and n is order of maxima
---------eqn 1
---------eqn 2
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For a wavelength of 420 nm, a diffraction grating produces a bright fringe at an angle of 24°. for a...
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