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In a photodiode the coductivity increase...

In a photodiode the coductivity increases when the material is exposed to light. It is found that coductivity change only if the wavelength is less than `600nm`. What is the band gap?

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In a photodiode,the conductivity increases when the material is exposed to light.It is found that the conductivity changes only if the wavelength is less than 620nm.What is the band gap?

In a photodiode,the conductivity increases when the material is exposed to light.It is found that the conductivity changes only if the wavelength is less than 620nm.What is the band gap?

In a photodiode,the conductivity increases when the material is exposed to light.It is found that the conductivity changes only if the wavelength is less than 620nm.What is the band gap?

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