# Problem: The deBroglie wavelengths of a moving electron are given. Which wavelength would correspond to the greatest speed of the moving electron?a. 8.25 x 10 9 mb. 1.35 x 10 -13 mc. 8.25 x 10 12 md. 1.21 x 10 -6 me. 1.21 x 10 -10 m

###### FREE Expert Solution
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###### FREE Expert Solution

We’re being asked to determine the de Broglie wavelength of an electron corresponding to the greatest speed.

Recall that the de Broglie wavelength (λ) can be calculated using:

$\overline{){\mathbf{\lambda }}{\mathbf{=}}\frac{\mathbf{h}}{\mathbf{mv}}}$

where:

h = Planck's constant (6.626 × 10–34 kg • m2/s)

m = mass (in kg)

v = velocity (in m/s)

85% (152 ratings)
###### Problem Details

The deBroglie wavelengths of a moving electron are given. Which wavelength would correspond to the greatest speed of the moving electron?

a. 8.25 x 10 9 m

b. 1.35 x 10 -13 m

c. 8.25 x 10 12 m

d. 1.21 x 10 -6 m

e. 1.21 x 10 -10

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the De Broglie Wavelength concept. You can view video lessons to learn De Broglie Wavelength. Or if you need more De Broglie Wavelength practice, you can also practice De Broglie Wavelength practice problems.

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Based on our data, we think this problem is relevant for Professor Bindell's class at UCF.