Consider a beam of free particles that have a certain non-relativistic kinetic energy K. If we double K, what happen to the beam's deBroglie wavelength?
  • A. it increases by a factor of 2.
  • B. it increases by a factor of the square root of 2.
  • C. it remains the same
  • D. it decreases by a factor of 2.
  • E. it decreases by a factor of the square root of 2.