Correct Answer:
C. Isaac Newton
The law of universal gravitation was formulated by Isaac Newton. This foundational law describes the gravitational attraction between any two objects with mass.
- Isaac Newton (C) is correct. He published his law of universal gravitation in 1687 in his work Philosophiæ Naturalis Principia Mathematica.
- Albert Einstein (A) is incorrect; he developed the theory of relativity, which refined our understanding of gravity but did not formulate the initial law.
- Galileo Galilei (B) is incorrect; he made significant contributions to observational astronomy and the study of motion but did not formulate the law of gravity.
- Nikola Tesla (D) is incorrect; he was an inventor and electrical engineer known for his contributions to AC electricity.