Instead of the usual position-momentum formulation, an alternate version of the uncertainty principle relates what two quantities?
A) mass and angular momentum
B) charge and electric field
C) angle and position
D) energy and time
E) wavelength and frequency

Question

Quizplus · Accepted Answer

The alternate version of the uncertainty principle is the energy-time uncertainty principle, which states that the uncertainty of energy multiplied by the uncertainty of time is greater than or equal to Planck's constant divided by 2π. This relationship is different from the position-momentum uncertainty principle, which states that the uncertainty of position multiplied by the uncertainty of momentum is greater than or equal to Planck's constant divided by 2π. Therefore, the correct answer is D) energy and time.

Instead of the Usual Position-Momentum Formulation, an Alternate Version of the Uncertainty