Question

The structure of solids is investigated by using:

• A. Cosmic rays
• B. \( \beta \)-rays
• C. X-rays
• D. \( \gamma \)-rays

Hint:

X-ray diffraction (XRD) is used to study crystal structures and material properties.

Answer 1

The Correct Option is C

X-rays are used in X-ray diffraction (XRD) techniques to determine the crystal structure of solids. Thus, the correct answer is: \[ \boxed{\text{X-rays}}. \]