A common example of diffraction of light is looking at an object that is partially immersed in water, where the object appears to be in a different place. Sound diffraction is usually not visible, but it is audible through walls or other solid objects.Know More
Diffraction of light is the easiest to recognize, since it takes only a glance. Looking at something beneath the surface of the water is one example. In spear fishing, the fish appears to be somewhere it is not due to how the water affects light. Water droplets also diffract light in the same way.
The diffraction of sound is more difficult to pinpoint, but is most noticeable when solid items, such as walls or columns, are between the listener and the source of the sound. Sound also diffracts when it passes through water in a similar fashion to light. The waves slow down when passing through water, distorting the end result.
A good way to visualize diffraction is to imagine ripples or waves in water. If the waves are moving in a uniform line and the middle of the line hits a pole or wall, the waves bend around the obstacle and their form is changed, just like sound and light waves.Learn more about Optics & Waves
A spectroscope relies on separating light into its component parts because of the information that can be obtained from examining the wider spectrum of colors that composes white light as it is reflected off an object. Such information can include elemental composition as well as how much of a particular element makes up the object that is being looked at.Full Answer >
Photogate timers are timing devices used to determine the velocity of a passing object in physics experiments. They are useful for measuring events within milliseconds or any interval that cannot be measured by a human being.Full Answer >
Sounds travel through waves, and these waves are made by vibrating an object, whether vocal cords or drums, according to the University of Rhode Island. Moving the object in one direction compresses the air in front of it. The pressure differences in the air move away from the object, creating sound waves.Full Answer >
Resonance frequencies are the natural frequencies at which it is easiest to get an object to vibrate. While setting up vibrations at other frequencies is possible, they require much more energy and constant input to maintain than a resonance frequency. Most objects have several resonance frequencies, and this property must be taken into account because of their positive, as with musical instruments, or negative, as with bridges, effects.Full Answer >