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Hello,

I need help filling out the table and calculating for D.

Thanks.

0.1 mm
10 mm
Wavelength
511 nm
Diameter
0 10 mm
Eccentricity
0.00
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Transcribed Image Text:0.1 mm 10 mm Wavelength 511 nm Diameter 0 10 mm Eccentricity 0.00
radius
mth order
dark fringe
slit
L-10 m
sereen
Figure 11: A side-view of the online simulation, defining the geometry used to analyze single-slit diffaction
patterns.
The formula for the morder dark fringe in single-slit difiraction is
m = 1
m = 3
mi = Dsine
Equation 1
m = 2
Where D is the slit width. Notice that e can be found via Pythagorean's theorem from Figure 11.
Figure 10. Procedure to measure the fringes from the online simulation.
sin 8 =
Equation 2
• Notice at the top left of the diffaction image screen, there is a 10 mm scale.
• Use this scale to estimate the radius of first dark fringe.
• To do this, take a piece of paper and, within the simulation, place it against your computer screen to
Here, y is the radius of the mt order dark fringe, as indicated at the right of Figure 11. Using Equation 2, find
sin e for each of the dark fringe orders in Table 1. Enter these values into the third column of Table 1. Be surs
to use consistent wnits for the lengths!
mark the 10 mm distance.
• From this, construct a homemade ruler with 5 mm, 10 mm, and 20 mm drawn on the paper.
• Use this homemade calibrated 'ruler' to estimate the radius (from the center of the bright green circle to
the center of the dark fringe).
• Enter the radius, y, estimate into Table 1, making sure to include proper wnits.
• Continue measuring the radii for dark fringe orders 2, 3, and 4. Enter them into Table 1. Try to do
estimate your values within 1-2 mm accuracy.
Using the data from each row in Table 1, together with Equation 1, estimate the slit diameter, D. Recall that 2 =
511 nm. Enter the values for D into the last column of Table 1.
Table 1: Data table for Activity 2, using 2 = 511 nm.
Insert yowr work for one of your 'D' calculations here.
Dark Fringe Order
Radius of Dark Fringe, y
sin e
D, slit dianeter
m=1
7mm
m =2
14mm
m =3
18mm
m=4
22mm
Q11. Find the average value of your four estimated slit diameters. If this is not roughly equal to the value
specified in the experiment as the 'accepted' value of 0.l mm, go back and check your work Ensure that
you are using consistent units for lengths.
Consider a side-view of the slit and screen as showm in Figure 11. Notice that the slit to screen distance is 1.0 m.
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Transcribed Image Text:radius mth order dark fringe slit L-10 m sereen Figure 11: A side-view of the online simulation, defining the geometry used to analyze single-slit diffaction patterns. The formula for the morder dark fringe in single-slit difiraction is m = 1 m = 3 mi = Dsine Equation 1 m = 2 Where D is the slit width. Notice that e can be found via Pythagorean's theorem from Figure 11. Figure 10. Procedure to measure the fringes from the online simulation. sin 8 = Equation 2 • Notice at the top left of the diffaction image screen, there is a 10 mm scale. • Use this scale to estimate the radius of first dark fringe. • To do this, take a piece of paper and, within the simulation, place it against your computer screen to Here, y is the radius of the mt order dark fringe, as indicated at the right of Figure 11. Using Equation 2, find sin e for each of the dark fringe orders in Table 1. Enter these values into the third column of Table 1. Be surs to use consistent wnits for the lengths! mark the 10 mm distance. • From this, construct a homemade ruler with 5 mm, 10 mm, and 20 mm drawn on the paper. • Use this homemade calibrated 'ruler' to estimate the radius (from the center of the bright green circle to the center of the dark fringe). • Enter the radius, y, estimate into Table 1, making sure to include proper wnits. • Continue measuring the radii for dark fringe orders 2, 3, and 4. Enter them into Table 1. Try to do estimate your values within 1-2 mm accuracy. Using the data from each row in Table 1, together with Equation 1, estimate the slit diameter, D. Recall that 2 = 511 nm. Enter the values for D into the last column of Table 1. Table 1: Data table for Activity 2, using 2 = 511 nm. Insert yowr work for one of your 'D' calculations here. Dark Fringe Order Radius of Dark Fringe, y sin e D, slit dianeter m=1 7mm m =2 14mm m =3 18mm m=4 22mm Q11. Find the average value of your four estimated slit diameters. If this is not roughly equal to the value specified in the experiment as the 'accepted' value of 0.l mm, go back and check your work Ensure that you are using consistent units for lengths. Consider a side-view of the slit and screen as showm in Figure 11. Notice that the slit to screen distance is 1.0 m.
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