Which of the following statements is TRUE? A) Energy of band gap does not matter

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

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