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1/3

f lamda f^2 1/f2 lamda(m)

10 3.78 100 0.01 0.0378

12 3.03 144 0.006944 0.0303

14 2.57 196 0.005102 0.0257

16 2.12 256 0.003906 0.0212

18 1.82 324 0.003086 0.018220 1.67 400 0.0025 0.0167

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lamda^3 lamda^3 (cm)

5.4010152E-005 54.010152

2.7818127E-005 27.818127

1.6974593E-005 16.974593

9.528128E-006 9.528128

6.028568E-006 6.0285684.657463E-006 4.657463

0.002 0.003 0.004 0.005 0.006 0.00

10

20

30

40

50

60

1/f2

1/f2

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3/3

7 0.008 0.009 0.01 0.011