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Question

Who discovered the law of planetary motion?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Kepler

Planetary Motion Law Discovery

The question asks to identify the scientist credited with discovering the law of planetary motion.

The law of planetary motion describes the movement of planets around the Sun. These fundamental laws were formulated by Johannes Kepler based on detailed astronomical observations.

  • Johannes Kepler, a German astronomer, developed his three laws of planetary motion in the early 17th century.
  • His work mathematically described the orbits of planets as ellipses, a significant departure from earlier circular models.
  • Newton later built upon Kepler's work to develop his law of universal gravitation.
  • Einstein's theory of relativity provided a different framework for understanding gravity.
  • Galileo made significant contributions to observational astronomy but did not formulate the laws of planetary motion.

Therefore, Johannes Kepler is recognized for discovering the law of planetary motion.

The correct answer is Kepler.

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