An electron and a baseball move at the same speed.Which has the longer wavelength?
A)the electron
B)the baseball
C)Both have the same wavelength.

Question

Quizplus · Accepted Answer

The wavelength of an object is inversely proportional to its momentum. Since the momentum of a baseball is much greater than that of an electron (because of its much larger mass), the electron will have a longer wavelength. Therefore, the correct answer is choice A.

An Electron and a Baseball Move at the Same Speed