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The wavelength of some orange light is 620.0 nm. What is the frequency of this orange light?

Jun 25, 2016

$4.839 \cdot {10}^{14} H z$

Explanation:

Wavelength relates to frequency as follows:
$f = \frac{v}{\lambda}$
in which $f$ is the frequency, $v$ is the speed of light, and $\lambda$ is the wavelength.

Filling this in for the example:

$v = 3 \cdot {10}^{8} \frac{m}{s}$
$\lambda = 620.0 n m = 6.20 \cdot {10}^{-} 7 m$

$f = \frac{3 \cdot {10}^{8} \frac{m}{s}}{6.20 \cdot {10}^{-} 7 m} = 4.839 \cdot {10}^{14} {s}^{- 1}$

So the frequency of the orange light is $4.839 \cdot {10}^{14} H z$