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In the above figure, which shows the pattern of interference fringes for light of wavelength 485 nm passing through two narrow slits, projected onto a screen a distance of 1.81 m away. The distance on the screen between the centers of two adjacent bright fringes is 1.66 cm. What is the distance between the two slits?

In the above figure, which shows the pattern of interference fringes for light of wavelength 485 nm passing through two narrow slits, projected onto a screen a distance of 1.81 m away. The distance on the screen between the centers of two adjacent bright fringes is 1.66 cm. What is the distance between the two slits?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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 In the above figure, which shows the pattern of interference fringes for light of wavelength 485 nm passing through two narrow slits, projected onto a screen a distance of 1.81 m away. The distance on the screen between the centers of two adjacent bright fringes is 1.66 cm. What is the distance between the two slits? 

 

**Interference Pattern in Wave Physics** The image above illustrates a classic interference pattern, often observed in wave physics. This particular pattern is created by the overlapping of two sets of coherent waves, typically light, sound, or water waves. The resulting pattern is characterized by alternating bands of light and dark fringes, indicative of areas of constructive and destructive interference. **Explanation of the Diagram:** - **Bright Fringes**: These are areas of constructive interference where the wave crests of the two sets overlap, reinforcing each other and producing a higher intensity of light. This is why these areas appear brighter. - **Dark Fringes**: These band-like regions represent destructive interference, where the crest of one wave coincides with the trough of another, canceling each other out and resulting in lower intensity or darkness. - **Gradual Transition**: Between these bright and dark fringes, there is a gradient that represents varying degrees of constructive and destructive interference, showing how the waves transition smoothly between the two extremes. Such interference patterns are pivotal in understanding wave behavior and properties, and they play a crucial role in technologies such as holography, diffraction grating usage, and the calibration of optical instruments. Learning about these patterns provides insight into the fundamental principles of wave interaction.
Transcribed Image Text:**Interference Pattern in Wave Physics** The image above illustrates a classic interference pattern, often observed in wave physics. This particular pattern is created by the overlapping of two sets of coherent waves, typically light, sound, or water waves. The resulting pattern is characterized by alternating bands of light and dark fringes, indicative of areas of constructive and destructive interference. **Explanation of the Diagram:** - **Bright Fringes**: These are areas of constructive interference where the wave crests of the two sets overlap, reinforcing each other and producing a higher intensity of light. This is why these areas appear brighter. - **Dark Fringes**: These band-like regions represent destructive interference, where the crest of one wave coincides with the trough of another, canceling each other out and resulting in lower intensity or darkness. - **Gradual Transition**: Between these bright and dark fringes, there is a gradient that represents varying degrees of constructive and destructive interference, showing how the waves transition smoothly between the two extremes. Such interference patterns are pivotal in understanding wave behavior and properties, and they play a crucial role in technologies such as holography, diffraction grating usage, and the calibration of optical instruments. Learning about these patterns provides insight into the fundamental principles of wave interaction.
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