Thursday, September 27, 2007

Refraction and Diffraction

Diffraction occurs when waves that are travelling in a straight line, change their direction by hitting another object. The wavefronts are bent around the object. The direction of a motion of the wavefront and indicate the wave ray drawn and the right angle. Refraction we will use in rays. When a wave travel in from one depth of water to another, there is a in change direction, and the refracted wave ray is bent (refracted) towards normal. The angle of incidence is shown between the normal and the incident wave ray.
And the work that we did today was correcting the Exercise of Refraction and the Refraction and in class time we did the Transparency worksheet.Next scribe is Lee

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