AIIMS 2019 Physics Angular Momentum MCQ Question
Assertion : Even when orbit of a satellite is elliptical, its plane of rotation passes through the centre of earth.
Reason : According to law of conservation of angular momentum, the plane of rotation of satellite always remains same.
If both assertion and reason are true and reason is correct explanation of assertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The statement is true because, in the absence of external torque, the angular momentum of a system remains conserved, meaning both its magnitude and direction remain constant. For a rotating object, such as the Earth, this implies that the plane of rotation must pass through the center of the Earth to maintain a stable rotational axis. Options B and C are incorrect because they either deny the conservation principle or suggest ambiguity where the laws of physics provide clarity. Option D is irrelevant as it does not pertain to the question's context.
Found an issue with this question?
Related Questions
More from Mechanics
The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm, potential energy stored in it will be:
Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass. The centre of mass o...
Which of the following statements are correct? (A) Centre of mass of a body always coincides with the centre of gravity of the body. (B) Centre of m...