Name _____________________________________________________________ Per _________ Date _____________
Wave Calculations
1. Which of the waves shown below has the higher frequency? (The scales are the same for each drawing).
Explain your answer.
a
.
b
.
2. What is the frequency of light that has a wavelength of 3.10 x 10-9 m?
3. What is the wavelength of electromagnetic radiation if its frequency is 3.2 x 10-2 Hz?
4. An am radio station broadcasts at 630 KHz on the dial. What is the wavelength that this station is using?
5. Determine the energy in joules of a photon whose frequency is 3.55 x 1017 Hz.
6. Determine the energy in joules of a FM radio station whose frequency is 100.3 MHz.
7. A tanning lamp has a wavelength of 3.15 x 104 m. Determine the amount of energy that is in the wave of the tanning
lamp.
8. Consider the following energy levels of a hypothetical atom:
E4 = 1.0 x 10-19 J
E3 = 5.0 x 10-19 J
E2 = 10 x 10-19 J
E1 = 15 x 10-19 J
What is the wavelength in nanometers of a photon emitted from an electronic transition from E4 to E2?
9. Consider the following energy levels of a hypothetical atom:
n4 = = 1.0 x 10-19 J
n3 = 5.0 x 10-19 J
n2 = 10 x 10-19 J
n1 = 15 x 10-19 J
The wavelength in (nanometers) of a photon given off in the Lyman series is 142nm. What was the energy of the
excited state?