Muhammad Ahad Butt

Critical Angle and Total Internal Reflection

Reference

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSHZ9yD7BAR6UwiF2kEew7c_q7cpYPQ9sauKx-UUlJjfxReje3JtQ

https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTw37DOJYmRb1mge3yOJI0OEbANzEyp64VwijQfHoWWNpwTSqC8kA

https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcSZejyK7pkaHmZUxlPzzdxqELD05z9DtRvfs97C7_WxHgUmNdR_IQ

http://theboard.byu.edu/media/attached_files/r_96768/Total-Internal-Reflection.gif https://encrypted-

tbn0.gstatic.com/images?q=tbn:ANd9GcRru0VkvpBSGn9_jSc2e6M1m2fd8gFHyNF7t4DE7NPw4J-dx33A

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRItEqKoU1Up88Tk1uMI2JoDQ2Gz2le18mSnmVPcrKPhW2cz-TKcw

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS_I0sDEXWF_I1ZYBipgc8_ZPt8H5GXnJnai6Lr995JkDgF-c0H

http://boson.physics.sc.edu/~rjones/phys153/lab03.html http://whs.wsd.wednet.edu/Faculty/Busse/MathHomePage/busseclasses/physics/studyguides/chapter1

4/graphics/reflection.jpg https://encrypted-

tbn2.gstatic.com/images?q=tbn:ANd9GcSHbB8VXAeGex1SZOsyh10Vmgpy9Sy0c3CJd2bqUhdixCHyAj1U4w

Glossary

Total Internal Reflection= the complete reflection of a light ray reaching an interface with a less dense medium when the angle of incidence exceeds the critical angle.

Refraction= change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.

Normal= (of a line, ray, or other linear feature) intersecting a given line or surface at right angles.

Incident Ray= The 'incident ray' is the ray of light that strikes the surface before reflection, transmission, or absorption.

Refracted Ray= A light ray that is bent into a different direction when it changes speed passing from one medium into another.

Angle of incidence= the angle which an incident line or ray makes with a perpendicular to the surface at the point of incidenc

Angle of refraction= the angle made by a refracted ray with a perpendicular to the refracting surface.

Medium= the intervening substance through which sensory impressions are conveyed or physical forces are transmitted.