Question

The interference fringes for sodium light (λ=5890 A°) in a double slit experiment have an angular width of 0.2°> . For what wavelength will the width be 10% greater ?
(A) 5890 A°
(B) 7500 A°
(C) 6479 A°
(D) 8768 A°

Answer 1

6479 A° is ur answer.

Hope it helps uh...
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