Why is it difficult to determine the exact position and velocity of an electron simultaneously?
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A.
Electrons move at extremely high speeds in all directions.
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B.
Measuring one property affects the accuracy of the other.
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C.
Electrons do not follow the basic laws of physics.
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D.
Electrons are very small and cannot be detected easily.
Correct Answer:
B. Measuring one property affects the accuracy of the other.
Explanation:
The difficulty in simultaneously determining an electron's precise position and velocity is a fundamental principle of quantum mechanics known as the Heisenberg Uncertainty Principle. According to this concept, the act of measuring one variable inevitably disturbs the other. For instance, to locate an electron, one must bounce a photon off it; however, this interaction transfers energy to the electron, unpredictably altering its velocity. Consequently, increasing the precision of the position measurement directly leads to greater uncertainty in its momentum, and vice versa.
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