De Broglie's Equation

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Lauren Bui 1E
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Joined: Sat Jul 20, 2019 12:15 am

De Broglie's Equation

Postby Lauren Bui 1E » Sun Oct 13, 2019 7:51 pm

When do I use De Broglie's equation?

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Re: De Broglie's Equation

Postby katrinawong3d » Sun Oct 13, 2019 7:56 pm

Use it when you have mass and velocity and need wavelength.

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Re: De Broglie's Equation

Postby Goyama_2A » Sun Oct 13, 2019 8:06 pm

I agree with the above post but remember that the equation can only be used to calculate the wavelength of an object that has mass. When the object of the question doesn’t have mass, i.e. light, we use other equations such as c=(lambda)v.

Sydney Pell 2E
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Re: De Broglie's Equation

Postby Sydney Pell 2E » Sun Oct 13, 2019 8:34 pm

As long as you have two of the three variables (mass, velocity, or wavelength), you can use De Broglie's Equation to solve for the remaining one. Usually, questions will ask to solve for the wavelength, but the equation could also be manipulated to solve for m or v as well.

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Re: De Broglie's Equation

Postby kpang_4H » Sun Oct 13, 2019 8:39 pm

De Broglie's equations applies as long as the particle in question has p, momentum(mv), and has wavelike properties. Depending on the question, you can use the equation to find mass, velocity, or wavelength.

Kaylee Clarke 1G
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Re: De Broglie's Equation

Postby Kaylee Clarke 1G » Sun Oct 13, 2019 9:31 pm

De Broglie's equation is used to find wavelength.

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