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Practice over 1000+ GATE-level questions from this topic!

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Q#1 Semiconductor Physics GATE EC 1993 MSQ +1 mark -0 marks

Consider the semiconductors A and B. The figure shows variation of lnρ with 1/T, where ρ is resistivity and T the temperature, for the two semiconductors. Choose the correct statement.

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The band-gap energy of A is larger than that of B.

The band-gap energy of A is smaller than that of B.

The maximum wavelength of light needed to create an electron hole pair is larger in A than in B

The maximum wavelength of light needed to create an electron hole pair is smaller in A than in B.

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Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Electronics and Communications
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