Question

The de broglie wavelength of an electron in the ground state of hydrogen atom is

Answer 1

The velocity v of the hydrogen electron in its ground state is v = αc where α is the fine structure constant. Hence its momentum is mαc where m is the electron mass. So the de Broglie wavelength is h/mαc = 0.332 nm, same result Tusharkanta Srichandan got.