Find the de broglie wavelength of electron, Computer Engineering

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Q. Find the de Broglie wavelength of electron in the fourth orbit of hydrogen atom.

We know that, λ = 2πr / n

λ4 = 2πr ₄ / 4

= 2π (4 ² r1) / 4

= 2 X 3.14 X 4 X 0.53 A⁰

= 13.313 A⁰

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