A ray in the emission spectrum has a wavelength of 3.10 x 1014 meters. Given that the speed of light is 2.998 x 108 m/s, what is the frequency of the ray?

Question

anonymous · Answer

i know the equation to work it out but how would i set it up?

rvc · Answer

okay
what is the equation?

rvc · Answer

$$v=n\lambda $$

rvc · Answer

v= 2.998 X 10^8 which can be approximated as 3 X 10^8
lambda = 3.10 X 10^14

anonymous · Answer

is that the one ?i thought it was velocity of a wave = frequency x wavelength

anonymous · Answer

You have to use the given formula:
$$f=\frac{ v }{ \lambda }$$, where f is frequency, v is speed and lambda is wavelength.

rvc · Answer

|dw:1435079711852:dw|