Einstein's equation: hν = φ0 + Kmaxआइंस्टाइन का समीकरण: hν = φ0 + KmaxEinstein's equation: hν = φ0 + Kmax
NCERT Sec 11.6 · Class 12 Physics · Chapter 11 · interactive diagram
Read Chapter 11 with this diagramइस डायग्राम के साथ अध्याय 11 पढ़ेंIs diagram ke saath Ch 11 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- Photon energy hν (फोटॉन ऊर्जा hν) — One photon gives all its energy hν to one electron.
- Work function φ0 (कार्य फलन φ0) — Part of hν used just to get out of the metal.
- Maximum kinetic energy Kmax (अधिकतम गतिज ऊर्जा Kmax) — What is left: Kmax = hν − φ0. More tightly bound electrons come out with less.
- Escape level (पलायन स्तर) — An electron must be raised at least to this level to leave the metal.
- Metal surface (धातु पृष्ठ) — The most energetic free electrons sit φ0 below the escape level.
- Photoelectron (प्रकाश-इलेक्ट्रॉन) — Leaves with kinetic energy up to Kmax = eV0.
- Not enough energy (ऊर्जा अपर्याप्त) — If hν < φ0 (ν < ν0) the electron cannot escape. More intense light only means more such photons — still no emission.
Original diagram drawn by Simple Learning Hub, based on NCERT Sec 11.6. Report a mistake