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Dec 8

Science Blog post Light

Posted on Friday, December 8, 2017 in Learning Moments

What is the angle of incidence?
The angle of incidence is the angle between the incident beam, and the normal. Or the beam of light traveling towards the mirror.

What is the angle of reflection?

The angle of reflection is the angle between the reflected beam, and the normal.

What is the difference between the incident ray/beam and the reflected beam?

The incident beam is when the beam of light is traveling TOWARDS the mirror, and the reflected beam is the the light beam that has been reflected, and is traveling AWAY from the mirror.

Why don’t we see a reflection on a wall?

Because the surface of the wall is not smooth, and because it isn’t smooth, the light bounces off in many directions. (Diffuse Reflection) Angle of Incidence doesn’t correspond with the angle of Reflection.

Why do we see an image reflected in some objects and not others?

Because some objects have Regular Reflection, and some have Diffuse Reflection.

What is illuminance?

How bright the wave is.

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