Question 28
Modern PhysicsX-rays can be used in the study of crystal structures because they
- A.have an extremely short wavelength.
- B.have a very long-reaching wavelength.
- C.are very fast.
- D.are invisible.
Show the answer and explanation
Answer: A (have an extremely short wavelength.)
Explanation
X-ray wavelengths are about the same as the spacing of atoms in a crystal, so crystals diffract them.