Which of the following statements is TRUE? A) Energy of band gap does not matter
ID: 45 • Letter: W
Question
Which of the following statements is TRUE?
A) Energy of band gap does not matter
B) In order for a photon to excite an electron over the energy band gap the energy of the photon must be greater than
the energy of the band gap
C) In order for a photon to excite an electron over the energy band gap the energy of the photon must be equal to the
energy of the band gap
D) In order for a photon to excite an electron over the energy band gap the energy of the photon must be less than the
energy of the band gap
Explanation / Answer
B) In order for a photon to excite an electron over the energy band gap the energy of the photon must be greater than
the energy of the band gap