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Twelfth Grade (Grade 12) Quantum Physics and the Atom Questions

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Grade 12 Quantum Physics and the Atom
What is the correct value of Planck's constant (h), according to Planck's quantum theory?
  1. h=6.625×10-34J
  2. h=6.520×10-30C
  3. h=6.645×10-25J
  4. h=6.21×10-20C
Grade 12 Quantum Physics and the Atom
Compton Scattering involves what kind of energy?
  1. low energy x-rays
  2. doesn't use any energy
  3. moderate energy x-rays
  4. very high energy x-rays