I drive through a traffic light. When I was pulled over, I tell the police that the red light of wavelength 675 nm appear green to me, with a wavelength of 525 nm cause of doppler effect. How fast was I traveling?
[tex]\Delta[/tex] [tex]\lambda[/tex] / [tex]\lambda[/tex] = v/c
v is the speed that the source is receding, isn't it the same as the speed I am traveling?
The Attempt at a Solution
v = c (675-525) /675
I just followed the equation to find v, but it was incorrect.