# Worksheet 1. The figure shows the viewing screen in a double-slit experiment. Fringe C is the cen...

###### Question:

Worksheet 1. The figure shows the viewing screen in a double-slit experiment. Fringe C is the central maximum. For questions a-c, will the fringe spacing increase, decrease, or stay the same? Give an explanation for each A B CD E a. The distance to the screen is increased b. The spacing between the slits is increased c. The wavelength of the light is increased d. Suppose the wavelength of the light is 500nm. How much farther is it from the dot in the center of fringe E to the more distant slit than it is from the dot to the nearer slit? Intensity A 300 nm a 0.2 mm 2. The graph shows the light intensity on a screen behinda 0.2-mm-wide slit illuminated by light with a 500 nm wavelength a. Draw o picture in the box of how a photograph taken at this location would look. Use the same horizontal scale, so that your picture aligns with the graph above. Let the white of the paper represent the brightest intensity and the darkest you can draw with a pencil or pen be the least intensity Intensity A.250 nm a=0.2 mm b. Using the same horizontal scale as in part a, draw graphs showing the light intensity if Intensity 1000 nm a 0.2 mm i, λ-250 nm and a-0.2 mm. ii. A-1000 nm and a 0.2 mm iii. A-500 nm and a -0.1 mm Intensity a 500 nnm a-0.1 mm

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