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1. |
Identify the expression for Bragg s law from the following. |
A. | 2d cos u2061 =n |
B. | 2d sin u2061 =n |
C. | 2d sin = ( frac {n}{ lambda } ) |
D. | 2d cos u2061= ( frac {n}{ lambda } ) |
Answer» C. 2d sin = ( frac {n}{ lambda } ) | |