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CSCA PhysicsChapter 4: OpticsIntermediate

Physical Optics: Interference & Diffraction

物理光学:双缝干涉与单缝衍射 · Node 4.2

Coherent light sources, Young's double-slit fringe spacing formula, and single-slit diffraction patterns.

Chapter Weight: 10% of official examination
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Core Mathematical Axiom

Formula Proof & Traps
Δx=dL​λ,δ=∣r1​−r2​∣=mλ(Bright),δ=(m+21​)λ(Dark)
CSCA Exam Trap Alert

Confusing the uniform double-slit fringe spacing formula with single-slit central maximum width (which is 2x wider).

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