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An electron is moving in the 3 rd orbit of hydrogen atom and radius of first orbit is x. Then. de-broglie wavelength is 6pix de-broglie wavelength is 2pix electron velocity is h/6pixm electron velocity is h/2pixm
Given that the radius of first orbit is x,one can use the formular=(0.529*n2)/zputting n=z=1we can calculate r and that value of r will be xnow, since the electron is moving in 3rd orbit,one can cal r from the above formula again with n=3to get the ans try putting the value of r in the formula for velocity, asv=(n*h)/(2*3.14*m*r)orfurther you can find wavelength = (h/m*v)
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