Which of the following statements is TRUE?
a. Energy of band gap does not matter
b. In orde...
Physics, 19.08.2021 03:50 meganwintergirl
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
Answers: 2
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The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
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What kind of waves require a medium to travel? question 6 options: light waves mechanical waves all waves need a medium to travel electromagnetic waves
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