Wave Optics — Formula Sheet
Tamil Nadu Board · Class 12 · Physics
2 formulas from Wave Optics (Tamil Nadu Board Class 12 Physics) on one page, grouped by topic. Part of the Tamil Nadu Board Class 12 Physics syllabus.
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Formulas and Key Relations
3 Interference
Condition for constructive interference (bright fringes)
Phase difference φ = 0, 2π, 4π,... or path difference δ = nλ (n = 0,1,2,...)
Condition for destructive interference (dark fringes)
Phase difference φ = π, 3π, 5π,... or path difference δ = (2n-1)λ/2 (n = 1,2,3,...)
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