What is the de-Broglie wavelength associated with an electron moving at a speed of \(5.4\times10^6~\text{m/s}\)?
1. | \(0.244~\text{nm}\) | 2. | \(0.135~\text{nm}\) |
3. | \(0.157~\text{nm}\) | 4. | \(0.111~\text{nm}\) |
The de-Broglie wavelength associated with a ball of mass \(150~\text{g}\) travelling at a speed of \(30.0~\text{m/s}\) is:
1. \(1.47\times10^{-32}~\text{m}\)
2. \(2.01\times10^{-34}~\text{m}\)
3. \(2.01\times10^{-32}~\text{m}\)
4. \(1.47\times10^{-34}~\text{m}\)
An electron, an α-particle, and a proton have the same kinetic energy. Which of these particles has the shortest de Broglie wavelength?
1. Electron
2. -particle
3. proton
4. All have the same de Broglie wavelength
A particle is moving three times as fast as an electron. The ratio of the de Broglie wavelength of the particle to that of the electron is . The particle’s mass is:
What is the de Broglie wavelength associated with an electron, accelerated through a potential difference of \(100\) V?
1. \(0.123\) nm
2. \(0.232\) nm
3. \(0.031\) nm
4. \(0.312\) nm