Selected MCQ

Current Question
Which tensor describes spacetime curvature?
  • A. Maxwell tensor
  • B. Riemann tensor
  • C. Stress tensor
  • D. Metric tensor only
Correct Answer: B
Explanation:
Riemann curvature tensor quantifies spacetime curvature.
Related Question 1
Which statement best describes a catalyst?
  • A. It changes (\Delta G) of reaction
  • B. It changes equilibrium constant
  • C. It lowers activation energy for forward and reverse reactions
  • D. It is consumed stoichiometrically
Correct Answer: C
Explanation:
A catalyst accelerates both directions equally without shifting equilibrium.
Related Question 2
Which equation describes wave speed?
  • A. (v = f\lambda)
  • B. (v = at)
  • C. (v = u + at)
  • D. (v = s/t)
Correct Answer: A
Explanation:
Wave speed equals frequency times wavelength.