X-Rays Are Waves of Electromagnetic Radiation with an Extremely Short

question 101

Multiple Choice

X-rays are waves of electromagnetic radiation with an extremely short wavelength (0.01 to 10 nanometers) . They can be used in X-ray crystallography to infer the arrangement of atoms in a crystal because:

• A)all X-rays bounce off the surface of the crystal.
• B)they can be used on live cells without isolating the protein in question.
• C)their wavelength allows them to determine the amino acid sequence of the protein.
• D)some X-rays pass through the crystal and scatter in different directions.
• E)all X-rays pass through the crystal without changing direction.

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A psychological reaction that occurs when people feel their freedom to choose or act is threatened, leading them to resist the influence or change.

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