The theory of relativity was introduced (in 1905) by:
Correct answer: B. Einstein
- A. Planck
- B. Einstein
- C. Maxwell
- D. Rutherford
Explanation
Albert Einstein, a German physicist, introduced the theory of relativity in two parts: the special theory of relativity in 1905 and the general theory of relativity in 1915. The special theory of relativity, encapsulated in the famous equation E=mc², revolutionized our understanding of space, time, and energy. The general theory of relativity extended these ideas to include gravity and described it as the curvature of spacetime caused by mass and energy.
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About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
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