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21 September, 13:12

In a diffraction experiment, light of 600nm wavelengthproduces

a first-order maximum 0.350 mm from the central maximum ona distant

screen. A second monochromatic source produces athird-order maximum

0.870mm from the central maximum when it passesthrough the same

diffraction grating. What is the wavelengthof the light from the

second source?

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Answers (1)
  1. 21 September, 14:00
    0
    497 nanometers is the answer.

    λ^2 = (y^2/, m^2) d/R = (y^2/m^2) (m^1/y^1) λ^1 = (0.870mm/3) (1/0.350mm) 600nm=497nm
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