Q.

Which of the following does not represent the mathematical expression for the Heisenberg uncertainty principle.

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a

Δx×Δph/(4π)

b

ΔEΔth/(4π)

c

ΔEΔxh/(4π)

d

Δx×Δvh/(4πm)

answer is D.

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Detailed Solution

The mathematical expression for the Heisenberg uncertainty principle is,

Δx×Δph4π Δx×ΔVh4πm mV=P E×th4π

where ΔE is the uncertainty in energy and Δt is the uncertainty in time. This means that within a time interval Δt, it is not possible to measure energy precisely.

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Which of the following does not represent the mathematical expression for the Heisenberg uncertainty principle.