Question

Question #26591

Answer 1

`lambda = 4.75xx10^4 m`

Explanation:

To answer this question, we can use the wave equation formula:

Where `lamda` is the wavelength and it has units of meters. `c` is the speed of light and it has a value of `3.0xx10^8 m/s`. `f` represents the frequency and it has units of Hertz or reciprocal seconds (`1/s`).

We know the frequency, `f` and the speed of light since that is a constant. All we have to do is plug in the known values and solve for `lambda`:

`lambda = (3.0xx10^8 m/cancel"s")/((6.21xx1018)/cancel"s")`

`lambda = (3.0xx10^8 m/cancel"s")/(6321.78/cancel"s")`

`lambda = 4.75xx10^4 m`