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A violet light-emitting source gives out photons of… | StemPy Lab
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A violet light-emitting source gives out photons of energy 3.2 eV, which is the gap of the crystal inside it. A student wants the wavelength of this light. Use hc = 1240 eV nm. What wavelength does the student find?
Physics
Easy
High School (11–12)
Electronics
Created by
StemPy Lab
A violet light-emitting source gives out photons of energy
3.2
3.2
3.2
eV, which is the gap of the crystal inside it. A student wants the wavelength of this light. Use
h
c
=
1240
eV nm
hc = 1240\ \text{eV nm}
h
c
=
1240
eV nm
. What wavelength does the student find?
194
nm
194\ \text{nm}
194
nm
388
nm
388\ \text{nm}
388
nm
775
nm
775\ \text{nm}
775
nm
3970
nm
3970\ \text{nm}
3970
nm
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