(a) θi = 20.3˚, θr = 85.4˚, Φ = 43.6˚

Wavelength/nm

Experimental value/sr−1

Predicted value/sr−1

Error/%

1024

0.025249

0.026126

3.57%

1124

0.017103

0.017423

0.18%

1224

0.041458

0.039617

4.35%

1324

0.046181

0.045676

1.09%

1424

0.066151

0.069926

5.71%

1524

0.100965

0.098186

2.78%

1624

0.096948

0.091062

6.13%

(b) θi = 17.9˚, θr = 85.5˚, Φ = 40.8˚

1024

0.02551

0.026115

2.37%

1124

0.017453

0.018408

5.75%

1224

0.038447

0.035598

7.41%

1324

0.047696

0.045658

4.20%

1424

0.0695

0.069929

0.62%

1524

0.102518

0.098189

4.22%

1624

0.074242

0.081061

9.18%

(c) θi = 21.4˚, θr = 83.8˚, Φ = 48.9˚

1024

0.026238

0.026808

2.17%

1124

0.023725

0.02243

5.46%

1224

0.042651

0.038909

8.69%

1324

0.05972

0.055551

6.98%

1424

0.068411

0.072873

6.52%

1524

0.098999

0.100781

1.80%

1624

0.086514

0.082427

4.72%