Which of the following objects, all moving at the same speed, will have the largest de Broglie wavelength?

Question

Quizplus · Accepted Answer

The de Broglie wavelength is inversely proportional to the mass of the object, so the smaller the mass, the larger the wavelength. Electrons have a much smaller mass than protons, bowling balls, and neon atoms, and neutrons have a similar mass to protons. Therefore, the electron will have the largest de Broglie wavelength among the given options.

Which of the Following Objects, All Moving at the Same