Question

complete the following paragraph
wavelength frequency energy speed of light plancks constant joules
meters
a student wanted to calculate the wavelength of a microwave. he was given the energy of one microwave photon in
first, he divided the photons energy by
to find the
of the microwave. next, this number was divided by the
to find the
of the microwave in

Explanation:

Step1: Recall energy - frequency relation

The energy of a photon is given by $E = h
u$, where $E$ is energy, $h$ is Planck's Constant and $
u$ is frequency. So, to find frequency from energy, we divide energy by Planck's Constant.

Step2: Recall frequency - wavelength relation

The speed of light $c$ is related to frequency $
u$ and wavelength $\lambda$ by $c=
u\lambda$. So, to find wavelength from frequency, we divide the speed of light by the frequency.

Answer:

A student wanted to calculate the wavelength of a microwave. He was given the energy of one microwave photon in Joules. First, he divided the photon's energy by Planck's Constant to find the frequency of the microwave. Next, this number was divided by the speed of light to find the wavelength of the microwave in meters.