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prove that [2 pie r=n lambda] the circumference of the bohr orbit for the hydrogen atom is an integral multiple of the de brogli wavelength
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𝝅r^2 (Pi R Squared) - GCSE Maths - Steps, Examples & Worksheet
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Solve the Quadratic Equation A = pi*r^2 for r - YouTube
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2pir – Comprehensive Explanation and Detailed Examples - The Story of Mathematics - A History of Mathematical Thought from Ancient Times to the Modern Day
