Energy of Photons Worksheet
1.
Determine the frequency of an electromagnetic wave with a wavelength of 3.40 x 10-6
meters.
2. Determine the energy in joules of a photon whose frequency is 7.50 x 1016 Hz.
3. Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor for use as a
gamma ray source in the treatment of certain types of cancer. If the wavelength of the
gamma radiation from Co-60 is 2.00 x 10-12 m, calculate the energy of a photon of this
radiation.
4. Determine the frequencies for the following wavelengths of electromagnetic
radiation: a. 9.00 x 10-10 m
b. 463 nm
5. What is the energy of a photon of an x-ray with a frequency of 2.00 x 1019 Hz?
6. The wavelength of a beam of light is 15.0 nm.
a. What is its wavelength in centimeters?
b. What is its frequency in Hertz?
c.
What is the energy of one of its photons?
7. Which has the greater energy – a photon of blue light or a photon of yellow light? Be
sure to include all your reasoning in your answer. You should use the equations c =
λν and E = hν in your answer.
8.
Find the wavelength in meters for an electromagnetic wave with a frequency of 101.5
MHz.