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A diffraction grating has 1.26xx10^(4) r...

A diffraction grating has `1.26xx10^(4)` rulings uniformly spaced over width w=25.4 mm. It is illuminated at normal incidence by blue light of wavelength 450 nm At what angles to the central axis do the second order maxima occur

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To solve the problem of finding the angles at which the second order maxima occur for a diffraction grating, we can follow these steps: ### Step 1: Calculate the grating spacing (D) The grating spacing (D) is calculated using the formula: \[ D = \frac{w}{n} \] where: - \( w = 25.4 \, \text{mm} = 25.4 \times 10^{-3} \, \text{m} \) - \( n = 1.26 \times 10^{4} \) ...
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