diffraction grating question?

2 Answers

• Jacy

  1 month ago

  The diffraction formula:

  Dsinθ = λ,

  which states that constructive interference occurs when the path difference equals 1 wavelength.

  λ = (1/750)x10-³/sin34 = (1.33×10^-6)/0.5592 = 2.378×10^-6 = 2.378 um

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• Anonymous

  7 days ago

  the diffraction formula is Dsin(theta) = lambda

  1. the problem tells us the diffraction grating is 750 slits per mm so that will be (1/750mm); however the answer asks for the units in nanometers so I converted that first

  1/750mm * (1,000,000 nm/1mm) = 1.33 x 10^3 nm

  – from there, multiple (sin34) x (1.33 x 10^3nm) = 746 nm

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