Category: Physics MCQs

The anomalous Zeeman effect arises due to A Nuclear spin B Electron spin and spin–orbit coupling C Phonons D Thermal

Stacking fault energy in crystals affects: A Dislocation mobility B Band gap C Nuclear radius D Electron mass Explanation Lower

The coordination number of an FCC lattice is: A 6 B 8 C 12 D 4 Explanation Each atom in

Miller indices are obtained by: A Taking intercepts directly B Taking reciprocals of intercepts and clearing fractions C Multiplying intercepts

In a simple cubic crystal, the number of atoms per unit cell is A 2 B 4 C 1 D

For a photon gas, internal energy U is proportional to A T B T³ C T⁴ D 1/T Explanation Blackbody:

In microcanonical ensemble, all accessible microstates have A Different probabilities B Zero probability C Equal probabilities D Probabilities depending on

In Maxwell–Boltzmann statistics, particles are treated as A Indistinguishable B Fermions only C Bosons only D Distinguishable classical particles Explanation

Probability of an event that is certain to occur equals A 0 B 0.5 C 1 D Undefined Explanation Certain

Bohr’s quantization condition for angular momentum is A L=nhL = nhL=nh B L=nh/2L = nh/2L=nh/2 C L=nℏL = n\hbarL=nℏ D