Question

How do I calculate the frequency in hertz of each wave.
A: 419 NM 4.10X10^-7M
B: 569NM 5.69X10^-7M
C: 679NM 6.79X10^-7M

PLEASE HELP ME

Answer 1

These are all electromagnetic waves, right?

Answer 2

\[ c = 3 x 10^8 m/s\]
\[ c = f \lambda\]
\[ f = \frac{c}{\lambda}\]
Be sure to use the wavelength that's converted to meters. ^_^

Answer 3

the Hertz unit is
\[\frac{1}{s}\]
a "per second"