Q8 of 26 Page 1

Find out the wavelength of the electron orbiting in the ground state of hydrogen atom.

For electron revolving in nth orbit and having radius of orbit as rn we


have,


Where,


n = number of the orbit


λ = wavelength


rn = radius of the orbit


For electron orbiting in ground state,


λ=2π×0.53 Å [ ∵ n = 1 ; rn = 0.53 Angstroms]


∴ λ = 2π × 0.53


= 3.331 Å


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