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Just wanna understand the concept .

come up with meaningful answers.

2007-03-01 14:51:41 · 2 answers · asked by krissh 3 in Science & Mathematics Physics

2 answers

this is the defination of wave

A wave is a disturbance which travels through a medium when the particles of a medium set the adjacent particles in motion.
Their are baisically two types of waves - transverse, and longitudinal waves.

Transverse waves - when the particles move in a direction perpendicular to the force applied. the particles oscillate up and down about their mean position.
imagine and ocean wave movin foward, it also moves up and down.
light, electromagnetic waves are transverse waves.

Longitudinal waves - well, the particles just vibrate about their mean position and they set the adjacent particles in motion and the wave is carried foward.
sound is and example of this kind of wave.

light is an electromagnetic spectrum with a wavelenght visable to the naked eye. The elementary partible that defines light is the photon.
The three basic dimensions of light (i.e., all electromagnetic radiation) are:

* Intensity, or alternatively amplitude, which is related to the perception of brightness of the light,
* Frequency, or alternatively wavelength, perceived by humans as the color of the light, and
* Polarization (angle of vibration), which is only weakly perceptible by humans under ordinary circumstances.

Due to the wave-particle duality of matter, light simultaneously exhibits properties of both waves and particles. The precise nature of light is one of the key questions of modern physics.

2007-03-01 15:18:38 · answer #1 · answered by shadowfax 1 · 1 0

This is the biggest issue in physics today, light has both the properties of a wave and a particle.
OK, light can go through a vacuum, a particle can go thru a vacuum, but light can go thru a solid, but a particle cannot. light is something detected by a sensing device like an infrared sensor or the Mark 1 eyeball. Light travels in waves.

FYI, the color red is now used as the standard of constant measurement any point on a red color is exactly one meter from its comparable point on the next wave. This standard once was kept by the Royal Obsevatory in Greenwich, England ("0" degrees)and was a platinum bar kept at a constant tempature.

2007-03-01 15:04:08 · answer #2 · answered by auhunter04 4 · 1 0

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