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Explain wave behavior of light, including diffraction and interference, including the role of constructive and destructive interference in Young’s single-slit and double-slit experiments; Perform calculations involving diffraction and interference, in particular the wavelength of light using data from a two-slit interference pattern
In this chapter, we show how the phenomena of interference and diffraction arise from the physics of the forced oscillation problem and the mathematics of Fourier transformation. We begin by discussing interference from a double slit. This is the classic example of interference.
According to the superposition principle, the net displacement is simply given by the vector or the algebraic sum of the individual displacements. Interference is the combination of two or more waves to form a composite wave, based on such principle. The idea of the superposition principle is illustrated in Figure 14.1.1. (d) .
diffraction: The bending of a wave around the edges of an opening or an obstacle. constructive interference: Occurs when waves interfere with each other crest to crest and the waves are exactly in phase with each other.
Monochromatic light is incident upon a single opening or obstacle. Light diffracts through the opening or around the obstacle. An interference pattern arises from the interference of light waves from extreme ends of the opening or opposite sides of the obstacle.
28 Μαΐ 2024 · Diffraction is a fundamental concept in the study of waves and optics that describes how waves bend around obstacles and spread out as they pass through narrow openings. It is a phenomenon that occurs with all types of waves, including sound, light, and water waves.
When light diffracts through two nearby small openings, an interference pattern will form. This also happens when light diffracts around a small obstacles.
