Lesson: Matter Waves High School Physics

Physics

In this lesson, we will learn how to calculate the de Broglie wavelength of massive particles that have a given momentum or velocity.

Video

11:40

Sample Question Videos

02:22
02:11

Worksheet

Q1:

If an electron and a muon have the same speed, which particle has the greater de Broglie wavelength?

Q2:

Which of the following formulas shows the relation between the de Broglie wavelength of a particle, , its momentum , and the Planck constant ?

Q3:

A muon has a rest mass of kg. If the muon is moving at a speed of 20 m/s, what is its de Broglie wavelength? Use a value of J⋅s for the Planck constant. Give your answer to 3 significant figures.

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