Light - Determining the Speed & Wavelength of Light

Determine the Speed of Light

Determine the Wavelength of various colors of Light

Theory: When coherent light shines through a diffraction grating, interference occurs. The wavelength of the light can be calculated using this formula dsinθ = nλ. Where lambda (λ) represents the wavelength of light, n is the order of the interference spot, d is the separation distance between the slits in the grating, and θ is the angle between the central maximum and the bright spot in question.Variables

Procedure:

Calculations

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