Which of the following parameters will increase when the frequency of a sound wave is decreased?

I. Period
II. Wavelength
III. Amplitude

Which of the following waves can propagate in a vacuum?

I. Sound waves

II. X-ray waves

III. Radio waves

Determine the frequency of electromagnetic radiation of wavelength .

Which of the following electromagnetic waves has the longest wavelength?

A team of engineers decides to drill a hole all the way through the diameter of the Earth. A wave (with wavelength ) is sent through the hole to a receiver on the other end who, upon receiving the wave, immediately sends the wave back through the hole to the original sender. The original sender says it took the wave exactly half a second to return to him after he sent it. The hole is approximately long. What is the frequency of the wave?

What is defined by the term wavelength?

For open pipes, the formula for wave patterns at any given time can be given by a Fourier Sine Series which is given as the infinite sum:

when is an integer, and is the length of the pipe. Each individual value of is called a harmonic.

What is the wavelength of the fundamental harmonic?

As a wave propagates from one medium to another, the speed decreases by a factor of two (halves). Which of the following is true about the wave in the second medium?

As you gradually turn down the light on a dimmer switch, you notice that it shows a red glow the instant before it turns off. Why does this happen?

Consider an electromagnetic wave travelling through a medium where the speed of light is . If the strength of the electric field is , and the speed of light is , what is the magnetic field strength?