Two coherent sources: crests, troughs and the lines of maximum and zero disturbanceदो कला-संबद्ध स्रोत: शृंग, गर्त, अधिकतम और शून्य विक्षोभ की रेखाएँTwo coherent sources: crests, troughs and the lines of maximum and zero disturbance
NCERT Fig 10.8, 10.10 · 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
- Coherent sources S₁, S₂ (कला-संबद्ध स्रोत S₁, S₂) — Like two needles moving up and down together in water: the phase difference between their waves at any point does not change with time.
- Separation d (दूरी d) — Distance between the two sources.
- Crests and troughs (शृंग और गर्त) — Solid circles = crests, dashed = troughs, at one instant.
- Antinodal lines (constructive) (प्रस्पंद रेखाएँ (संपोषी)) — Points where S₁P ~ S₂P = 0, λ, 2λ, … — waves arrive in phase, amplitude 2a, intensity 4I₀. Computed curves (hyperbolas).
- Nodal lines (destructive) (निस्पंद रेखाएँ (विनाशी)) — Points where S₁P ~ S₂P = λ/2, 3λ/2, … — crest meets trough, displacement zero.
- Point P on the bisector (समद्विभाजक पर बिंदु P) — S₁P = S₂P, so waves arrive in phase: y = 2a cos ωt, I = 4I₀.
Original diagram drawn by Simple Learning Hub, based on NCERT Fig 10.8, 10.10. Report a mistake