Physics

De Broglie's Explanation of Bohr's Second Postulate

डी ब्रॉग्ली द्वारा बोहर की द्वितीय अभिगृहीति की व्याख्या

In Class 12 Physics, this topic from Chapter 12: Atoms explains how de Broglie’s matter-wave concept gives a physical basis for Bohr’s second postulate. Students learn that an electron can remain in a permitted orbit only when its circumference contains an integral number of wavelengths, expressed as 2πr = nλ. Using λ = h/mv, this condition leads to the quantisation of angular momentum, mvr = nh/2π, and clarifies why only certain atomic orbits are allowed.