Speed, Frequency and Wavelength - How they are related, with examples
We know the speed of light and we know the wavelength so it's now an easy matter to plug these numbers into the equation and find the frequency of the radio . The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic . These relations are illustrated by the following equations: Radiation of each frequency and wavelength (or in each band) has a mix of properties. In the electromagnetic spectrum there are many different types of waves with equation: Any electromagnetic wave's frequency multiplied by its wavelength.
Draw a vertical line and label it "End". Cut the tape off of the roll leaving about 20 cm space between "End" and where you cut. Materials Manager should use the colored pencils to draw three evenly spaced horizontal lines along the tape from Start to End.
Make the top line red, the middle line green and the bottom line violet to represent three different colors in the spectrum of light. He or she may also share in the completion of the tasks.
LIGHT, EYE AND VISION - WikiLectures
Recorder should divide the red line every 14 cm with dark marks in red pencil. The green line should be divided every 10 cm and the violet every 8 cm. The marks that you make on the three color lines will represent the different wavelengths of the different colors of light. The true wavelengths are actually measured in terms of angstroms. An angstrom is cm or 0. Red has a wavelength of angstroms, green has a wavelength of angstroms and violet has a wavelength of angstroms.
Electromagnetic spectrum - Wikipedia
However, in this lab, the simple relationship among the visible light waves will be what is important. Materials Manager should use masking tape to fasten the marked adding machine tape to a pencil. Recorder should cut a manila folder along its crease.
Then cut a rectangle out of the center of one of the long sides. The color of an object is due to the frequencies and corresponding wavelengths of light absorbed by the object. Most objects absorb the majority of the frequencies of light.
- Optics - Wavelength, Frequency, And The Speed Of Light
- Electromagnetic spectrum
- LIGHT, EYE AND VISION
Any frequencies that are not absorbed by the object are reflected, giving the object a particular color. If an object absorbs all light except the frequencies found in the red region of the spectrum, the object appears red.
Red light is reflected off of the object. White is actually not a color, but a combination of all colors, occurring when all frequencies of light are reflected.
Likewise, black is actually the absence of reflected light, occurring when all frequencies of light are absorbed.
Light: Electromagnetic waves, the electromagnetic spectrum and photons
Light waves exhibit constructively and destructive interference patterns. Constructive interference occurs when two or more light waves meet in phase e. When the light waves meet out of phase e.
The concept of interference is important for understanding the phenomena of diffraction. Young's double-slit interference experiment is a classic explanation for diffraction, which is the bending of light as it passes around an object. Young made two small slits relatively close to each other on a dark board.
When he shined a light through the slits and observed the light on a screen, he noticed that the light did not pass directly though in two straight lines. Instead, there was a pattern of alternating bright and dark bands of light. This resulted from the light waves fanning out-diffracting-as they passed through the barrier slits, much like water ripples when it passes from a small opening into a larger body of water.