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Q. |
Which of the following rays are used in the powder method of crystals? |
A. | gamma rays |
B. | α-rays |
C. | β-rays |
D. | monochromatic x-rays |
Answer» D. monochromatic x-rays | |
Explanation: a monochromatic beam of x- rays strike a finely powdered sample that ideally has crystals randomly arranged in every possible orientation in the powder method. |
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