For what value of an electron’s speed will its de-Broglie wavele...
de Broglie wavelength

Compton wavelength



The correct answer is: 0.707
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For what value of an electron’s speed will its de-Broglie wavele...
de Broglie wavelength

Compton wavelength



The correct answer is: 0.707
For what value of an electron’s speed will its de-Broglie wavele...
De-Broglie Wavelength vs Compton Wavelength:
The de-Broglie wavelength is the wavelength associated with a particle, such as an electron, due to its momentum. On the other hand, the Compton wavelength is the wavelength associated with the rest mass energy of a particle.
Equations:
- De-Broglie Wavelength: λ = h / p, where h is the Planck constant and p is the momentum of the particle.
- Compton Wavelength: λc = h / (mc), where m is the rest mass of the particle and c is the speed of light.
Setting the Wavelengths Equal:
To find the speed at which the de-Broglie wavelength is equal to the Compton wavelength, we set the two equations equal to each other:
h / p = h / (mc)
Solving for Speed:
By substituting the momentum p = mv (where v is the speed of the particle) into the de-Broglie wavelength equation, we get:
h / mv = h / (mc)
Solving for v, we get:
v = c / √2 ≈ 0.707c
Therefore, when the speed of the electron is approximately 0.707 times the speed of light, its de-Broglie wavelength will be equal to the Compton wavelength.