What does N mean in Bragg's law?

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Tags

1. #condition
2. #family
3. #spacing
4. #incident
5. #integer
6. #vector
7. #interplanar
8. #order
9. #reflection
10. #plane
11. #bragg
12. #planes
13. #between
14. #lattice
15. #diffracted
16. #provides
17. #where
18. #angle
19. #wavelength