If the maximum possible accuracy in measuring the lifetime of a particle increases, the maximum possible accuracy in measuring its energy will
A) increase.
B) decrease.
C) not be affected.

Question

Quizplus · Accepted Answer

According to the Heisenberg Uncertainty Principle, the product of the uncertainties in time (lifetime of a particle) and energy must be greater than or equal to a constant value. Therefore, if the uncertainty in time decreases (meaning the accuracy in measuring the lifetime increases), the uncertainty in energy must increase, leading to a decrease in the accuracy of measuring its energy.

If the Maximum Possible Accuracy in Measuring the Lifetime of a Particle