Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?
A2 x 10-10 m
B0.02×10-10m
C20×10-10m
D4 x 10-10 m
Correct answer
A. 2 x 10-10 m
Explanation
2 x 10-10 m is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.