Question #3066e

1 Answer
Dec 10, 2017

f=5.65times10^-14" Hz"

Explanation:

v=f*lambda
velocity = frequency times wavelength

So plug in the values you've been given and solve for the frequency:

lambda=531 color(red)(times 10^-9)"m" - "because it's nanometres"
v = 3times10^8 " ms"^-1 (approx. speed of light)

3times10^8=f*531times10^-9

(3times10^8)/(531times10^-9)=f

f=5.65times10^-14" Hz"