Problem 5. Two beams of individual irradiances I₁=1 W/m² and 1₂=9W/m² are combined at a detector. A) Find the irradiance of the combined beams if one of the beams is red and the other blue. B) Find the irradiance of the combined beam if the individual beams originate from the same laser of wavelength 500 nm are split and then travel distances that differ by 800 nm to the detector where they are combined. C) Find the irradiance of the combined beam if the individual beams originate from the same laser of wavelength 500 nm are split and then travel distances that differ by 250 nm to the detector where they are combined.

Problem 5. Two beams of individual irradiances I₁=1 W/m² and 1₂=9W/m² are combined at a detector. A) Find the irradiance of the combined beams if one of the beams is red and the other blue. B) Find the irradiance of the combined beam if the individual beams originate from the same laser of wavelength 500 nm are split and then travel distances that differ by 800 nm to the detector where they are combined. C) Find the irradiance of the combined beam if the individual beams originate from the same laser of wavelength 500 nm are split and then travel distances that differ by 250 nm to the detector where they are combined.