A wavelength is the distance between two peaks on two different waves that are traveling in space. Waves are electromagnetic radiation that are comprised of either light or heat. Both light and heat waves travel through space to transfer energy.
Wavelengths are important concepts in physics and chemistry. To calculate the analytical value of a wavelength, students must graph the waves. The wavelength then can be determined by looking at two similar waves with the same phases. These waves must not cross and must be adjacent to each other. Then, students can measure the distance between the two highest peaks to determine the wavelength. In physics, wavelength is directly related to the frequency of the wave.
Learn MoreThe frequency of blue light with a wavelength of 4,000 Angstroms is 750,000,000 megahertz (MHz). The speed of light divided by wavelength equals frequency; therefore, the answer can be calculated using simple unit conversion.
Full Answer >The formula for finding the velocity of a wave is to multiply its wavelength by its frequency. In this case, 30 m x 12 Hz = 360 meters per second.
Full Answer >The energy wavelength equation is: E = hc/I, where E indicates energy measured in joules, I indicates wavelength in meters, c is the constant for how fast electromagnetic radiation (light for all extensive purposes) travels and h is Planck's constant. For reference, Planck's constant is h = 6.626 x 10-34 joules/second, and the speed of light in a vacuum is c = 3.0 x 108 meters/second.
Full Answer >Pitch is determined by the frequency of a wave, and frequency is the combination of wavelength and speed at which the wave is traveling. Sound has a constant speed of 343 meters per second, so wavelength dictates pitch. The longer a sound's wavelength, the lower the pitch of that sound.
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