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Verified answer
• interferensid = 0,2 mm
n = 2
y = 4 mm
L = 1 m = 10³ mm
λ = __?
y d / L = n λ
λ = y d / (n L)
λ = 4 • 0,2 / (2 • 10³)
λ = 4×10⁻⁴ mm ← jwb
cat :
Karena pilihannya dinyatakan dalam mm, besaran panjang (y, d, L) dikonversi langsung ke mm.