De Broglie’s standing electron wave on a Bohr orbit (n = 4)बोर कक्षा पर दे ब्रॉग्ली की अप्रगामी इलेक्ट्रॉन तरंग (n = 4)De Broglie’s standing electron wave on a Bohr orbit (n = 4)
NCERT Fig 12.8 · Class 12 Physics · Chapter 12 · interactive diagram
Read Chapter 12 with this diagramइस डायग्राम के साथ अध्याय 12 पढ़ेंIs diagram ke saath Ch 12 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- Standing wave that fits (n = 4) (फ़िट होने वाली अप्रगामी तरंग (n = 4)) — Exactly 4 de Broglie wavelengths fit in the circumference: 2πr = 4λ. The wave meets itself in step and survives.
- Wave that does not fit (फ़िट न होने वाली तरंग) — If 2πr is not a whole number of wavelengths, each new round is out of step with the last (dashed) and the wave cancels itself — no stable orbit.
- One de Broglie wavelength λ (एक दे ब्रॉग्ली तरंगदैर्घ्य λ) — λ = h/mv (Chapter 11). Putting 2πr = nλ gives mvr = nh/2π — Bohr’s second postulate.
- Bohr orbit (बोर कक्षा) — Circle of radius r around the nucleus.
- Orbit with a non-fitting wavelength (न समाने वाली तरंगदैर्घ्य की कक्षा) — Same circle, but the wavelength does not divide its circumference.
Original diagram drawn by Simple Learning Hub, based on NCERT Fig 12.8. Report a mistake