Principal Maximum Condition for Grating Diffraction (Multiple - Slit Interference) - Grating Equation
Formula: d sin θ = k λ, k = 0, ± 1, ± 2, Applicable Conditions: Parallel light incident normally on a diffraction grating. Explanation: 'd' is the grating cons…
Syllabus path: Optics › Physical Optics › Diffraction
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CSCA Physics Formula Reference
Formula and explanation
Formula: d sin θ = k λ, k = 0, ± 1, ± 2, Applicable Conditions: Parallel light incident normally on a diffraction grating. Explanation: 'd' is the grating constant (distance between centers of adjacent slits), θ is the diffraction angle, and 'k' is the order of the principal maximum (bright fringe). Bright interference principal maxima appear in directions satisfying this condition.
Related tutorial and examples
Diffraction
Topic: Optics > Physical Optics > Diffraction Diffraction 1. Conceptual Definition Diffraction is the phenomenon where light bends around the edges of an obstacle or passes through a small aperture, entering the geometric shadow. It is direct evidence of the Wave Nature of light.…
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