Explore topic-wise MCQs in Physics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Crystalline solids are which of the following?

A. Anisotropic
B. Isotropic
C. Amorphous
D. Unipotential
Answer» B. Isotropic
Discussion
2.

Which of the following is true regarding insulators?

A. The valence band is partially filled with electrons
B. The conduction band is partially filled with electrons
C. The conduction band is filled with electrons and valence band empty
D. The conduction band is empty and valence band is filled with electrons
Answer» B. The conduction band is partially filled with electrons
Discussion
3.

At absolute zero temperature, a semiconductor acts as a conductor.

A. True
B. False
Answer» C.
Discussion
4.

In semiconductors at room temperature, which of the following is likely to happen?

A. The valence band is partially empty and the conduction band is partially filled
B. The valence band is filled and the conduction band is partially filled
C. The valence band is filled
D. The conduction band is empty
Answer» B. The valence band is filled and the conduction band is partially filled
Discussion
5.

A piece of copper and another of germanium are cooled from room temperature to 77 K. what will impact on the resistance of each of them?

A. Each of these decreases
B. Copper strip increases and that of germanium decreases
C. Copper strip decreases and that of germanium increases
D. Each of these increases
Answer» D. Each of these increases
Discussion
6.

The energy band gap is maximum in which of the following?

A. Metals
B. Superconductors
C. Insulators
D. Semiconductors
Answer» D. Semiconductors
Discussion
7.

The manifestation of the band structure in solids is due to which of the following?

A. Heisenberg s uncertainty principle
B. Pauli s exclusion principle
C. Bohr s correspondence principle
D. Boltzmann s law
Answer» C. Bohr s correspondence principle
Discussion