Electromagnetic waves vary in
To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its
An electromagnetic wave in a vacuum has a wavelength of 0.07m. What is its frequency?
Light acts like
Which of the following occurs as light travels farther from its source?
Infrared rays have a shorter wavelength than
The full range of frequencies of electromagnetic radiation is called
The waves with the longest wavelengths in the electromagnetic spectrum are
The visible light spectrum ranges between
X-ray photographs show softer tissue
Which of the following occurs as a light wave bends when it passes from one medium into another?
Newton’s prism experiments showed that white sunlight is made up of
Cellular telephones utilize
When the absorption lines of a galaxy shift toward the blue end of the spectrum, it means that the galaxy is
The big bang theory explains the
Which of the following provides support for the big bang theory?
Light in the form of a particle that has discrete amount of energy is called a
A communications satellite transmits a radio wave at a frequency of 5.0 x 109 Hz. What is the signal’s wavelength? Assume the wave travels in a vacuum.
What is the electromagnetic spectrum?
Which is an example of a radio wave