Gravitation Question 182
Question: The earth revolves about the sun in an elliptical orbit with mean radius $ [9.3\times 10^{7},m] $ in a period of 1 year. Assuming that there are no outside influences
Options:
A) The earth’s kinetic energy remains constant
B) The earth’s angular momentum remains constant
C) The earth’s potential energy remains constant
D) All are correct
Show Answer
Answer:
Correct Answer: B
Solution:
Kinetic and potential energies varies with position of earth w.r.t. sun. Angular momentum remains constant every where.
