2. An AM radio station has a frequency of 720 kHz. What is the corresponding wavelength for this radio station?

3. An FM radio station has a frequency of 96.7 MHz. What is the corresponding wavelength to this radio station?

4. The range of wavelengths for visible light is from 3.9 x 10^-7 m to 7.0 x 10^-7 m. What is the corresponding range of frequencies for visible light?

5. X-rays used by dentists have a wavelength of roughly 3.0 x 10^-11 m. What is the frequency of these waves?

1. Which would cause a greater decrease in the intensity of a polarized light ray: a filter oriented at 15 or a filter oriented at 75 to the path of the light?

2. A polarized ray with an intensity of 15 W/m² encounters a filter oriented at 60 to its path. What is the resulting intensity of the light ray?

3. A polarized ray with an intensity of 10 W/m² encounters a filter oriented at 30 to its path. What is the resulting intensity of the light ray?

4. At what angle is a polarization filter oriented relative to the motion of a polarized ray if it reduces the intensity of the light ray to 60% of its initial level?

5. An unpolarized light ray has an intensity of 12 W/m².

a. What is the intensity of the light ray after it passes through a horizontally oriented filter?

b. What is the intensity of the light ray after it passes through a second filter that is oriented at a 45 angle to the first filter?

c. What is the intensity of the light ray after it passes through a third filter that is vertically oriented?