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.
If you know the wavelength and speed of a wave, all you have to do is plug them into the original formula and manipulate it to solve for the speed. Solve the following problem: Find the frequency of a wave with a speed of 10 m/s and a wavelength of 5 m. Here's how: 1  Wavelength (Î») = Wave speed (C)/Frequency (F). 2  Î» = C/F.