n your summer internship at an optical products company, you need to measure the wavelength λ of the light that is produced by a laser. To do this, you pass the light from the laser through two narrow slits that are separated by a distance d. You observe the interference pattern on a screen that is 0.900 m from the slits and measure the separation Δy between the adjacent bright bangs in the part of the picture that is near the center of the screen Using a microscope, you measure d. However, both Δy and d are small and difficult to measure accurately, so you repeat the measurements for several pairs of slits, each with a different value of d. Your results appear in Figure P35.52, where you have plotted Δy as a function of 1/d. The line on the graph is the best straight line for the data. (a)Explain why data points drawn in this way are close to a straight line. (b) Use Figure P35.52 to calculate λ.
In your summer internship at an optical products company, you need to measure the wavelength λ of the light that is produced by a laser. To do this, you pass the light from the laser through two narrow slits that are separated by a distance d. You observe the interference pattern on a screen that is 0.900 m from the slits and measure the separation Δy between the adjacent bright bangs in the part of the picture that is near the center of the screen Using a microscope, you measure d.
However, both Δy and d are small and difficult to measure accurately, so you repeat the measurements for several pairs of slits, each with a different value of d. Your results appear in Figure P35.52, where you have plotted Δy as a function of 1/d. The line on the graph is the best straight line for the data. (a)Explain why data points drawn in this way are close to a straight line. (b) Use Figure P35.52 to calculate λ.
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