During ancient times, people believed that Earth was the centre of the universe and all celestial bodies including the Sun revolved around the Earth. If this hypothesis was to be true, then:
During ancient times, people believed that Earth was the centre of the universe and all celestial bodies including the Sun revolved around the Earth. If this hypothesis was to be true, then:
The correct option is A Earth is heavier than Sun
Consider that the hypothesis is true and the Sun revolves around the Earth. We know that for any two bodies, the gravitational force exerted by one body over the other is equal to the force exerted by the second body on the first. However, the acceleration due to gravity is inversely proportional to their masses, because gravitational force (F) is given as,
F=mg⇒g=Fm
Hence, the given hypothesis could only be true if the mass of the Earth is much larger than that of the Sun. For the Sun to revolve around the Earth, it should have a much greater acceleration than that of the Earth.
Earth is heavier than Sun
Consider that the hypothesis is true and the Sun revolves around the Earth. We know that for any two bodies, the gravitational force exerted by one body over the other is equal to the force exerted by the second body on the first. However, the acceleration due to gravity is inversely proportional to their masses, because gravitational force (F) is given as,
F=mg⇒g=Fm
Hence, the given hypothesis could only be true if the mass of the Earth is much larger than that of the Sun. For the Sun to revolve around the Earth, it should have a much greater acceleration than that of the Earth.
