Electrons are sent through a double-slit apparatus,and an interference pattern is observed.If protons are sent through the same apparatus with the same speed as that of the electrons,the distance between the fringes would be
A)closer together.
B)farther apart.
C)the same as that of the electrons since the velocities are the same.

Question

Quizplus · Accepted Answer

The distance between the fringes in an interference pattern is dependent on the wavelength of the particles passing through the double-slit apparatus. Electrons have a very small de Broglie wavelength, which means the distance between the fringes is relatively large. Protons, on the other hand, have a much larger de Broglie wavelength due to their higher mass. This means that the distance between the fringes will be smaller, and they will be closer together.

Electrons Are Sent Through a Double-Slit Apparatus,and an Interference Pattern