Scattering experiment to understand why sky is blue
Apparatus :
A. Transparent glass container filled with milk-water mixture.
B. Flashlight
C. LASER light source of different wavelength
D. Cuvette
E. Photodiode detector
F. Oscilloscope
Procedure in laboratory (diagram) :
Procedure in laboratory :
Data and Analysis :
The scattering intensity for each different incident wavelength is measured which is given below in table.
The scattering light intensity, I, is plotted against λ (wavelength of incident light) which is shown in the figure below. This plot fits very well with the equation, I=c*(1/λ)4, where ‘c’ is the fitting constant.
Analysis :
- Determine the dependence of incident light wavelength on scattering light intensity.
- Check if it follows (1/λ)4 dependency.