A laser beam of wavelength 630 nm coherence width 8x10 -3 M and power 10Mw shines on a surface 100 M away. Seduce the illumination. Compare it with that due to a collamated beam from a torch filament of diameter 0.1 cm , lence of focal length 10 cm and power 10 W.
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!
Comments