Tuesday, July 16, 2013

Unit 10 Continued









In Unit 10 we expanded more on light and rays.  Today we learned about diffuse reflection also known as irregular reflection and a Regular/specular reflection.  A diffuse reflection also known as irregular reflection is the rough or bumpy surface of an object.  An example of diffuse reflection is a table top because table tops are not smooth, they are bumpy.  A Regular/Specular reflection is when light comes in and bounces off or strikes back at you or an object depending on where you are.  An example of a regular/specular reflection is a mirror because the surface of a mirror is flat and smooth.  In the first picture at the top there is a faded rainbow.  We learned today that rainbows are always the opposite of where the sun is sitting or where it sets.  I thought that was cool.  The second picture is of the bright blue sky.  Many people think the sky is blue because it is a reflection of the ocean but it's because there is a scattering of lower frequency/wavelengths in the sky.  The ocean is blue because it absorbs the lower wave lengths and lower light frequencies.  The last picture is a picture of an experiment we did in class.  We were observing different types of light behavior. 

2 comments:

  1. Nice explanation. Its short and simple, but it still explains the basic concepts of reflection and color mixing.

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