The frequency of light can be calculated using the equation:
c=λ×fc = lambda imes fc=λ×f
where: ccc is the speed of light in a vacuum (approximately 3×1083 imes 10^83×108 meters per second), λlambdaλ is the wavelength of light, and fff is the frequency of light.
Rearranging the equation, we have:
f=cλf = frac{c}{lambda}f=λc
Given a wavelength of 500 nm (nanometers), we need to convert it to meters by dividing by 10910^9109 (since there are 10910^9109 nanometers in a meter):
λ=500109lambda = frac{500}{10^9}λ=109500 meters.
Substituting the values into the equation:
f=3×108500109f = frac{3 imes 10^8}{frac{500}{10^9}}f=109