Selected MCQ

Current Question
A wave function must be normalizable because it represents:
  • A. Electric potential
  • B. Probability amplitude
  • C. Kinetic energy density
  • D. Momentum flux
Correct Answer: B
Explanation:
Total probability must be finite and equal to one.
Related Question 1
The wavefunction of a particle must be continuous because:
  • A. It represents force
  • B. Its square gives probability density
  • C. It represents velocity
  • D. It defines temperature
Correct Answer: B
Explanation:
Discontinuity would imply undefined probability.
Related Question 2
Which wave shows polarization?
  • A. Sound
  • B. Light
  • C. Water
  • D. Seismic
Correct Answer: B
Explanation:
Only transverse waves polarize.
Related Question 3
The partition function (Z) is related to Helmholtz free energy (F) by:
  • A. (F = kT \ln Z)
  • B. (F = -kT \ln Z)
  • C. (F = Z/kT)
  • D. (F = k/Z)
Correct Answer: B
Explanation:
Helmholtz free energy derives from partition function logarithm.
Related Question 4
Which wave travels in vacuum?
  • A. Sound
  • B. Water
  • C. Light
  • D. Seismic
Correct Answer: C
Explanation:
Light does not require medium.
Related Question 5
Which functional group is alcohol?
  • A. -COOH
  • B. -OH
  • C. -NH₂
  • D. -CHO
Correct Answer: B
Explanation:
Alcohols contain hydroxyl group.