Bozeman 120: Refraction of Light

When light energy propagates from one medium to another, it can be reflected, absorbed or transmitted.  With refraction, the focus of analysis is  ___.

transmitted

 When light enters one medium from another at an angle and travels slower it will ___. 

bend towards the normal or it is going to bend towards that dotted line or the perpendicular line.

  When light energy travels from one medium to another, entering at angle and moves faster it ___.

It will actually bend away from that normal. (refraction)

Implemented to quantify refraction; specifically velocity & angle.

Snell's Law 

Snell's Law considers this variable relationship between {of} two mediums.

index of refraction & sine of the angle

The index of refraction value(s) is denoted with the symbol ___ and equates ____.

n and equates medium 1

Increasing the angle of incident will result in a critical angle producing ___.

no refraction

Results when the incident angle is greater than the critical angle and no light is transmitted or refracted.

total internal reflection

Applying the concepts represented via Bozeman's analogy, when light enters a prism it will bend towards the ___.

towards the normal upon entering the glass and away from the normal upon exiting the glass.

Besides the sea turtle example Bozeman gives at the end of the viewing {Bozeman 120 Refraction of Light}, give a real world example of total internal reflection OR another interesting fact documented from this segment viewing.  NOTE: If you choose to use the marching band analogy; you must explain it's relation to refraction correctly.  

1. A laser pointed in the air will not refract until it touches glass then it will bend. It also reflects a little bit of light.