AP Physics 2hardmcq1 pt
A double slit with separation 0.20 mm is 1.0 m from a screen. For λ = 600 nm, the first bright fringe sits at about
A.3.0 mm
B.0.30 mm
C.30 mm
D.6.0 mm
Explanation
Core Concept
y = λL/d = (600×10⁻⁹)(1.0)/(0.20×10⁻³) = 3.0 mm.
Correct Answer
A3.0 mm
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