What is \"uncertain\" in the Heisenberg Uncertainty principle? The value of the
ID: 1390050 • Letter: W
Question
What is "uncertain" in the Heisenberg Uncertainty principle?
The value of the particle's position when the particle's momentum is known precisely.
The time period of the wave describing the particle.
The energy of the particle when it has wave properties.
The value of the Planck's constant.
a.The value of the particle's position when the particle's momentum is known precisely.
b.The time period of the wave describing the particle.
c.The energy of the particle when it has wave properties.
d.The value of the Planck's constant.
Explanation / Answer
A.The value of the particle's position when the particle's momentum is known precisely.
The Heisenberg Uncertainty Principle is one of those concepts in modern quantum physics that truly boggles the mind. Specifically, the Principle states that we cannot always assign an electron a position in space when describing it's velocity and vice versa. In practice this means that the closer we get to knowing where an electron is the less we know about it's speed and the more we know about it's speed the less we know about it's position.
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