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.
Calculate its wavelength in meters. Solution: 1) Convert MHz to sÂ¯ 1 : 91.5 MHz = 91.5 x 10 6 sÂ¯ 1 = 9.15 x 10 7 sÂ¯ 1. 1) Use Î»Î½ = c: (x) (9.15 x 10 7 sÂ¯ 1) = 3.00 x 10 8 m/s. x = 3.28 m. Problem #5: Calculate the wavelength of radiation emitted from radioactive cobalt with a frequency of 2.80 x 10 20 sÂ¯ 1.