JEE Main & Advanced Physics Gravitation / गुरुत्वाकर्षण Question Bank Assertion and Reason

  • question_answer
    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 plane of rotation of satellite always remain same.

    A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)             If assertion is true but reason is false.

    D)             If the assertion and reason both are false.

    E)             If assertion is false but reason is true.

    Correct Answer: A

    Solution :

        As no torque is acting on the planet, its angular momentum must remain constant in magnitude as well as direction. Therefore, plane of rotation must pass through the centre of earth.


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