Selected MCQ

Current Question
In special relativity, simultaneity of two spatially separated events is:
  • A. Absolute in all inertial frames
  • B. Relative to the observer’s frame
  • C. Undefined
  • D. Conserved under Galilean transformation only
Correct Answer: B
Explanation:
Events simultaneous in one inertial frame need not be simultaneous in another.
Related Question 1
In general relativity, geodesics represent:
  • A. Maximum energy paths
  • B. Straightest paths in curved spacetime
  • C. Quantum trajectories
  • D. Stationary points of entropy
Correct Answer: B
Explanation:
Free-falling particles follow spacetime geodesics.
Related Question 2
Which vitamin prevents scurvy?
  • A. A
  • B. B
  • C. C
  • D. D
Correct Answer: C
Explanation:
Vitamin C deficiency causes scurvy.
Related Question 3
In general relativity, gravity is best described as:
  • A. A force acting at a distance
  • B. Curvature of spacetime caused by mass-energy
  • C. Exchange of virtual photons
  • D. A fictitious force only
Correct Answer: B
Explanation:
Einstein’s theory models gravity as spacetime curvature influencing geodesic motion.