Question
Physics Question on Gravitation
Which of the following is the evidence to show that there must be a force acting on earth and directed towards Sun?
A
Apparent motion of sun around the earth
B
Phenomenon of day and night
C
Revolution of earth round the Sun
D
Deviation ofthe falling body towards earth
Answer
Revolution of earth round the Sun
Explanation
Solution
The earth revolves around the sun due to gravitation pull of the sun. Due to this gravitational attraction between this celestial body, centripetal force is generated which binds the solar system together. Hence revolution of earth round the sun is the evidence to show that there ust be force acting on earth nd directed towards the sun.