Which of the following rays are used in the powder method of crystals?
A
β-rays
B
Monochromatic X-rays
C
Gamma rays
D
α-rays
Answer:
The correct option is B. Monochromatic X-rays
Note
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.