The new era of modern physics began near the end of:
Correct answer: D. 19th Century
- A. 16th Century
- B. 17th Century
- C. 18th Century
- D. 19th Century
Explanation
The late 19th century marks the beginning of the new era of modern physics. This period saw the formulation of classical electromagnetic theory by James Clerk Maxwell, the development of thermodynamics, and the groundbreaking work of physicists like Michael Faraday. However, the true turning point came with the advent of quantum mechanics and the theory of relativity in the early 20th century, initiated by physicists such as Max Planck, Albert Einstein, Niels Bohr, and others.
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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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