When light of a wavelength λ = 520 nm is incident on a diffraction grating the first maximum after the center one is found to occur at an angle of θ1 = 8.5 degrees. 1. Write an expression for the grating's line density, n, in terms of the given quantities.

When light of a wavelength λ = 520 nm is incident on a diffraction grating the first maximum after the center one is found to occur at an angle of θ1 = 8.5 degrees. 1. Write an expression for the grating's line density, n, in terms of the given quantities.

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Question

When light of a wavelength λ = 520 nm is incident on a diffraction grating the first maximum after the center one is found to occur at an angle of θ₁ = 8.5 degrees.

1. Write an expression for the grating's line density, n, in terms of the given quantities.

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