Question

What is the wavelength of this photon in centimeters

Answer 1

The wavelength is give by
`\lambda=(c)/(f)=(3*10^8)/(1440*10^6)=0.2\, meters=20 \, centimeters`

Step-by-step explanation:

Using the expression
`c=\lambda f` isolate
`\lambda` to get
`\lambda=(c)/(f)`. Knowing that
`c=3* 10^8 \, m/s` and
`f= 1440* 10^6 Hz` and plugging these values in the
`\lambda` expression yields the correct answer of 20 centimeters.