The first flag of the United States of America had 13 stars, white  on a field of blue representing a new constellation.. The 13 stars  actually represented the first 13 stâ¦ates of our new nation in 1776.
#c = 3.00 x 10^8#m/s (the speed of light in a vacuum) #lambda# = wavelength in meters. #nu# = frequency in Hertz (Hz) or #1/s# or #s^-1#. So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light. FYI, #lambda# is the Greek letter lambda , and #nu# is the Greek letter nu (it is not the same as a v). To find wavelength (#lambda#), the equation is manipulated so that #lambda = c/nu#. EXAMPLE PROBLEM.
Then, substitute into Î»Î½ = c: (4.88 x 10Â¯ 7 m) (x) = 3.00 x 10 8 m sÂ¯ 1. x = 6.15 x 10 14 sÂ¯ 1. The use of nm for wavelength is quite common. Problem #2a: Calculate the frequency of electromagnetic radiation that has a wavelength of 1.315 micrometers.hen, substitute into Î»Î½ = c: (4.88 x 10Â¯ 7 m) (x) = 3.00 x 10 8 m sÂ¯ 1. x = 6.15 x 10 14 sÂ¯ 1. The use of nm for wavelength is quite common. Problem #2a: Calculate the frequency of electromagnetic radiation that has a wavelength of 1.315 micrometers.