Chapter 7, Problem 67E

Interpretation Introduction

Interpretation:

The energy uncertainty $\left(\Delta E\right)$ associated with the short pulse of laser light that lasts for $5.0\text{fs}$ is to be calculated. The wavelength of the high-energy end of the pulse that is limited only by the uncertainty principle is to be calculated.

Concept introduction: The Heisenberg’s uncertainty principle states that the position and velocity of an atom cannot be measured simultaneously. The equation of the Heisenberg’s uncertainty principle is,
$\Delta x\times m\Delta v\ge \frac{h}{4\pi }$

To determine: The energy uncertainty $\left(\Delta E\right)$ associated with the short pulse of laser light that lasts for $5.0\text{fs}$ and the wavelength of the high-energy end of the pulse that is limited only by the uncertainty principle.