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Energy Bands and Classification of Solids for JEE: 8 solved questions

Real JEE paper questions on energy bands and classification of solids, part of semiconductor electronics. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2002 to 2007. No sign-in needed to read them.

What this topic asks

• Conductors, insulators and semiconductors — 4 questions
• Energy bands and band gap — 4 questions

All 8 questions with solutions

• Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the followin… JEE Main 2007
• If the lattice constant of this semiconductor is decreased, then which of the following is correct? [Figure:… JEE Main 2006
• A solid which is transparent to visible light and whose conductivity increases with temperature is formed by JEE Main 2006
• The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter… JEE Main 2005
• The manifestation of band structure in solids is due to JEE Main 2004
• Formation of covalent bonds in compounds exhibits JEE Main 2002
• The energy band gap is maximum in JEE Main 2002
• At absolute zero, Si acts as JEE Main 2002