which is the correct formula for finding the frequency of an electromagnetic wave?\n○ (f = c-lambda)\n○…

which is the correct formula for finding the frequency of an electromagnetic wave?\n○ (f = c-lambda)\n○ (f=\frac{lambda}{c})\n○ (f=lambda + c)\n○ (f=\frac{c}{lambda})

which is the correct formula for finding the frequency of an electromagnetic wave?\n○ (f = c-lambda)\n○ (f=\frac{lambda}{c})\n○ (f=lambda + c)\n○ (f=\frac{c}{lambda})

Answer

Brief Explanations:

The speed - wavelength - frequency relationship for electromagnetic waves is $c = \lambda f$, where $c$ is the speed of light in a vacuum, $\lambda$ is the wavelength, and $f$ is the frequency. Rearranging this formula for $f$ gives $f=\frac{c}{\lambda}$.

Answer:

$f=\frac{c}{\lambda}$ (the fourth option)