Find the maximum wavelength of electromagnetic radiation which can create an electron - hole pair in silicon whose band gap energy is 1.1 eV.
A
560 nm
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B
1130 nm
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C
1240 nm
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D
870 nm
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Solution
The correct option is B 1130 nm
For the electron-hole pair creation, the energy of the incident radiation should be at least equal to the band gap of the material.
So,