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

  • question_answer
    Assertion          :           If earth were a hollow sphere, gravitational field intensity at any point inside the earth would be zero. Reason            :           Net force on a body inside the sphere is zero.

    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 :

        Intensity inside a hollow sphere is zero, so force is also equal to zero. \[\vec{F}=m\vec{E}\]


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