Adding two waves: in phase (path difference 2λ) and out of phase (2.5λ)दो तरंगों का योग: समान कला (पथांतर 2λ) और विपरीत कला (2.5λ)Adding two waves: in phase (path difference 2λ) and out of phase (2.5λ)
NCERT Fig 10.9 · Class 12 Physics · Chapter 10 · interactive diagram
Read Chapter 10 with this diagramइस डायग्राम के साथ अध्याय 10 पढ़ेंIs diagram ke saath Ch 10 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- Wave from S₁ at the point (बिंदु पर S₁ से तरंग) — Displacement y₁ = a cos ωt.
- Wave from S₂ at the point (बिंदु पर S₂ से तरंग) — Path difference 2λ ⇒ phase difference 4π ⇒ same as y₁. Path difference 2.5λ ⇒ phase difference 5π ⇒ y₂ = −a cos ωt.
- Constructive interference (संपोषी व्यतिकरण) — Resultant amplitude 2a. Intensity ∝ amplitude², so I = 4I₀ (not 2I₀!).
- Destructive interference (विनाशी व्यतिकरण) — Crest meets trough everywhere: the displacements cancel, I = 0.
Original diagram drawn by Simple Learning Hub, based on NCERT Fig 10.9. Report a mistake