a. How many slits were used in this experiment? No explanation required.

A. 1      B. 2      C. 3      D. 4      E. 5

b. Find L, the distance between the slits and the screen. Indicate in the picture what data you are using. Give your answer to three significant figures.

c. Find the slit width a.

d. In the figure above, the point labeled ‘a’ on the screen is the minimum at 8.5 cm. For this point, what is the path length difference delta D_ adj for two adjacent slits? Express your answer in units of nanometers.

e. In the figure above, mark

• Two principal maxima, and label them ‘b’.
• Two minima that are caused by multiple slit interference and NOT by single slit diffraction, label them ‘c’.
• Three minima that are due to single slit diffraction, and label them ‘d’

Transcribed Image Text:

The picture shows the interference pattern produced by a multiple slit experiment. The distance between the slits and the screen is L, the wavelength is 2. The slits are separated by a distance d and each have a width of a. You may use the small angle approximation. λ=650nm d = 0.125 mm Sowa ST a www.PrintableRulers net 10 11 12 13 14 15 The picture shows the interference pattern produced by a multiple slit experiment. The distance between the slits and the screen is L, the wavelength is 2. The slits are separated by a distance d and each have a width of a. You may use the small angle approximation. λ=650nm d = 0.125 mm Sowa ST a www.PrintableRulers net 10 11 12 13 14 15