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Grade: 11
```
Calculate (a) the de Broglie wavelength of an electron moving with a velocity of 5.0x 10 5 ms –1 and (b) relative de Broglie wavelength of an atom of hydrogen and atom of oxygen moving with the same velocity (h = 6.63 x 10 –34 kg m 2 s –1 )
Calculate (a) the de Broglie wavelength of an electron moving with a velocity of 5.0x 105 ms–1 and (b) relative de Broglie wavelength of an atom of hydrogen and atom of oxygen moving with the same velocity (h = 6.63 x 10–34 kg m2 s–1)

```
5 years ago

## Answers : (1)

Sakshi
askIITians Faculty
652 Points
```							Hello students..As we know the de-Broglie wavelength can be written asλ=h/mvwhere h is the Planks constant, m is the mass of the electron and v is the velocity of electron.On substituting the above values, one can find the value of de broglie wavelength.For the part 2,we can write,λH/λO = (h*mO*vO)/(mH*vH*h) = (mO/mH) = 16/1=16:1Hope you find the explaination worth!!!
```
5 years ago
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