An electron and a baseball move at the same speed. Which has the longer wavelength?
A)the electron
B)the baseball
C)both the same
D)none of the above

Question

Quizplus · Accepted Answer

The wavelength of a moving object is inversely proportional to its momentum. Since the momentum of an electron is much smaller than that of a baseball moving at the same speed, the electron would have a longer wavelength. This phenomenon is known as wave-particle duality and is a fundamental concept in quantum mechanics.

An Electron and a Baseball Move at the Same Speed