Q7 of 26 Page 1

When the electron orbiting in hydrogen atom in its ground state moves to the third excited state, show how the de Broglie wavelength associated with it would be affected.

Velocity of electron in nth excited state, vn∝ 1/n

De Broglie wavelength, λ ∝ 1/v



∴ Wavelength in third excited state becomes 4 times the wavelength in ground state.


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