Sunday, October 17, 2010

Physics help

Today I will serve you as a free online physics tutor. So let us start learning with refraction in physics.

Let me first give you refraction definition. The refraction is caused by the difference between the densities of three mediums or substances.

The waves phases velocity is altered at the finish of the boundaries between the media, so usually causing a alter in the direction of light. Although the frequency is constant but its wavelength increases or decreases . If the alter in refractive index, the light rays will refract is changed as it enters and leave the glass prism.

When the ray passes through the one region to other region i.e in to the water. The amount of bending ray is depend on the salinity, temperature, and pressure of the water. Similar effect is even be there in the earth’s atmosphere.
See the link to know about average velocity.

Also you can gain a learning online on math as well as other subjects such as Online English Grammar Test and so on.

Do post your comments.

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