AIIMS 2018 Physics Rutherford Model MCQ Question
Assertion : The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason : Rutherford did α-particle scattering experiment.
If both assertion and reason are true and reason is the correct explanation of assertion.Option A
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false
Correct Answer
Detailed Explanation
Option B is correct because Rutherford's gold foil experiment demonstrated that α-particles are repelled by a concentrated positive charge at the nucleus, confirming that this repulsive force follows an inverse square law with distance. This indicates that the nucleus is small and dense, containing most of the atom's mass and positive charge, rather than being evenly distributed throughout the atom. Other options may misinterpret the nature of atomic structure or the behavior of α-particles, failing to recognize the significance of the nucleus's concentrated charge in Rutherford's findings. Understanding this concept is crucial for grasping the foundational principles of atomic theory and nuclear physics.
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