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According to Einstein's theory of relativity, gravity is not an ordinary force, but aproperty of

Correct answer: C. Space-time geometry.

  • A. Length contraction.
  • B. Space-time interval.
  • C. Space-time geometry.
  • D. Mass-energy relation.

Explanation

According to Einstein's general theory of relativity, gravity is not an ordinary force but a result of the curvature of space-time geometry caused by mass and energy. Option C is correct as it reflects this concept. Length contraction (Option A) and space-time interval (Option B) are related to special relativity but do not describe gravity. Mass-energy relation (Option D) is a fundamental concept in relativity, expressing the equivalence of mass and energy, but it is not directly related to the nature of gravity.

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