## Solid and Crystals MCQ Basic Level

Physics is an important subject in preparation for various Competitive exams.To keep a track of your preparation we have designed a small quiz of 10 Basic Level Questions on Solid and Crystals. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. The manifestation of band structure in solids is due to

•  Heisenberg's uncertainty principle
•   Pauli's exclusion principle
•  Bohr's correspondence principle
•   Boltzmann's law

Pauli's exclusion principle

Q2. For non-conductors, the energy gap is

•  6 eV
•  1.1 eV
•  0.8 eV
•  0.3 eV

6 eV

Q3. The valence band and conduction band of a solid overlap at low temperature, the solid may be

•  A metal
•   A semiconductor
•  An insulator
•   None of these

A metal

Q4. The energy band gap is maximum in

•  Metals
•  Superconductors
•  Insulators
•  Semiconductors

Insulators

Q5. The band gap in Germanium and silicon in eV respectively is

•  0.7, 1.1
•   1.1, 0.7
•  1.1, 0
•  0, 1.1

0.7, 1.1

Q6. Wires P and Q have the same resistance at ordinary (room) temperature. When heated, resistance of P increases and that of Q decreases. We conclude that

•  P and Q are conductors of different materials
•   P is n-type semi-conductor and Q is p-type semi-conductor
•  P is semi-conductor and Q is conductor
•  P is conductor and Q is semiconductor

P is conductor and Q is semiconductor

Q7. The nature of binding for a crystal with alternate and evenly spaced positive and negative ions is

•  Covalent
•  Metallic
•  Dipolar
•   Ionic

Ionic

Q8.  If the distance between the conduction band and valence band is 1 eV, then this combination is

•  Metal
•  Insulator
•   Conductor
•  Semiconductor s

Semiconductor s

Q9.  Biaxial crystal among the following is

•   Calcite
•   Quartz
•  Selenite
•  Tourmaline

Tourmaline

Q10. The temperature coefficient of resistance of a conductor is

•  Positive always
•  Negative always
•  Zero
•  Infinite

Positive always

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Solid and Crystals MCQ Basic Level