MCQ
If the electron jumps from $7.00\,eV$ energy level to $5.0\,eV$ energy level, it :
  • A
    Absorbs $2.0\,eV $ kinetic energy
  • B
    Absorbs $2.0\,eV $ potential energy
  • C
    Emits $2.0\,eV$ electrical energy
  • Emits $2.0\,eV$ photon

Answer

Correct option: D.
Emits $2.0\,eV$ photon
d
emit $2.0\,ev$ photon. because $7.0-5.0$ (work function $)=2.0$

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