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CSS Physics QUESTION #1158
Question 1
X-rays are electromagnetic waves of wavelengths of the order of:
  • 1 nm
  • 0.1 nm✔️
  • 2 nm
  • 100 nm
Correct Answer Explanation
X-rays have wavelengths in the range of approximately \(0.01\ \text{nm}\) to \(10\ \text{nm}\), with a typical order of \(0.1\ \text{nm}\) (1 Å). This is comparable to the spacing between atoms in crystals, which is why X-rays are used in crystallography.