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Among the following which is rightly matched? A) Nicolaus Copernicus      a) Laws of planetary motion B) Johannes Kepler            b) Heliocentric Theory C) Galileo Galilei                 c) Discovered four moons revolving around Jupiter.

Among the following which is rightly matched? A) Nicolaus Copernicus      a) Laws of planetary motion B) Johannes Kepler            b) Heliocentric Theory C) Galileo Galilei                 c) Discovered four moons revolving around Jupiter. Correct Answer Only C

  • Nicolaus Copernicus proposed that Earth and other planets revolve around the sun or the Heliocentric Theory of the universe.
  • Johannes Kepler discovered three major laws of planetary motion. They are 1) The planets move in elliptical orbits with the Sun at one focus. 2) The line joining the planet to the sun sweeps over equal areas in equal intervals of time. 3) There is an exact relationship between the squares of the planets’ periodic times and the cubes of the radii of their orbits.
  • Galileo Galilei discovered the four biggest moons of Jupiter and the rings of Saturn. He also improved upon the telescope and invented an early type of the thermometer.

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