Which of the following is true for Bragg diffraction but not for diffraction from a grating?...
Which of the following is true for Bragg diffraction but not for diffraction from a grating?
A) Two different wavelengths may be used
B) For a given wavelength, a maximum may exist in several directions
C) Long waves are deviated more than short ones
D) There is only one grating spacing
E) Maxima occur only for particular angles of incidence
Please explain why the answer is E ?
Homework Answers
In bragg diffraction interatomic spacing is fixed only factor on which diffraction maxima depends on the incident angle
However in diffraction grating we can control the distance of sxreen from grating which helps in obtaining maxima
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