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In this section, we study the complications to the double-slit experiment that arise when you also need to take into account the diffraction effect of each slit. To calculate the diffraction pattern for two (or any number of) slits, we need to generalize the method we just used for a single slit.
6 Αυγ 2024 · Young's double-slit experiment produces a diffraction and an interference pattern using either: The interference of two coherent wave sources. A single wave source passing through a double slit. In this typical set-up for Young's double slit experiment: The laser light source is placed behind the single slit.
Young’s double slit experiment gave definitive proof of the wave character of light. An interference pattern is obtained by the superposition of light from two slits. There is constructive interference when d sinθ = mλ(form = 0, 1, −2, 2, −2,...) d sin. .
Put up a barrier to explore single-slit diffraction and double-slit interference. Experiment with diffraction through elliptical, rectangular, or irregular apertures. Make waves with a dripping faucet, audio speaker, or laser!
Example 14.1: Double-Slit Experiment Suppose in the double-slit arrangement, d =0.150mm, L =120cm, λ=833nm, and y =2.00cm . (a) What is the path difference δ for the rays from the two slits arriving at point P? (b) Express this path difference in terms of λ. (c) Does point P correspond to a maximum, a minimum, or an intermediate condition?
Shine it at a couple of closely-spaced double slits and project the diffraction pattern onto a distant screen. Make some measurements and use Young's Equation to determine the wavelength of light. Repeat your measurements and calculations for all three lasers and check your answers.
In this section, we study the complications to the double-slit experiment that arise when you also need to take into account the diffraction effect of each slit. To calculate the diffraction pattern for two (or any number of) slits, we need to generalize the method we just used for a single slit.
