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De Broglie poroposed that moving micro p...

De Broglie poroposed that moving micro particles exhibit wave behaviours. Electron in a Bohr.s orbit also shows dual nature whose wave length is given by `lambda_(e) = (h)/(m_(e)V_(e))`
`m_(e)` = mass of electron , `V_(e)` = velocity of electron , h = planck.s constant
Bohr.s atomic model is in good agreement with De-broglie concept and the electron has fixed energy in Bohr.s orbit : `2pi r = n lambda` (constructive wave in phase).
The kinetic energy of an electron in `alpha` Bohr.s orbit of H-atom is 3.4 eV. What is the its De-broglie.s wave length ?

A

3.3 Å

B

6.6 Å

C

2.2 Å

D

4.4 Å

Text Solution

Verified by Experts

The correct Answer is:
B
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De Broglie poroposed that moving micro particles exhibit wave behaviours. Electron in a Bohr.s orbit also shows dual nature whose wave length is given by lambda_(e) = (h)/(m_(e)V_(e)) m_(e) = mass of electron , V_(e) = velocity of electron , h = planck.s constant Bohr.s atomic model is in good agreement with De-broglie concept and the electron has fixed energy in Bohr.s orbit : 2pi r = n lambda (constructive wave in phase). A ground satte hydrogen atom is supplies with 17.6 ev of energy through alpha photon. What is the De-broglie wave length of the electron knocked out

De Broglie poroposed that moving micro particles exhibit wave behaviours. Electron in a Bohr.s orbit also shows dual nature whose wave length is given by lambda_(e) = (h)/(m_(e)V_(e)) m_(e) = mass of electron , V_(e) = velocity of electron , h = planck.s constant Bohr.s atomic model is in good agreement with De-broglie concept and the electron has fixed energy in Bohr.s orbit : 2pi r = n lambda (constructive wave in phase). Two moving micro particles possess their kinetic energies in 2:1 ratio with same De-Broglie.s wave length.s What is the ratio of their masses?

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