Refraction - Reflection and refraction of light - CCEA - GCSE Physics (Single Science) Revision - CCEA - BBC Bitesize
![A ray of white light travels through air (index of refraction n=1) and then strikes a glass block that is 1.5 cm thick and has index of refraction n=1.6 as shown below. A ray of white light travels through air (index of refraction n=1) and then strikes a glass block that is 1.5 cm thick and has index of refraction n=1.6 as shown below.](https://homework.study.com/cimages/multimages/16/diagram4014431399528872038.jpg)
A ray of white light travels through air (index of refraction n=1) and then strikes a glass block that is 1.5 cm thick and has index of refraction n=1.6 as shown below.
![A triangular glass block has an index of refraction of 1.5. A red laser pointer enters the glass perpendicular to side A. Calculate the transmission angle as the light exits side C. A triangular glass block has an index of refraction of 1.5. A red laser pointer enters the glass perpendicular to side A. Calculate the transmission angle as the light exits side C.](https://homework.study.com/cimages/multimages/16/untitled-25645357051983865126.jpg)
A triangular glass block has an index of refraction of 1.5. A red laser pointer enters the glass perpendicular to side A. Calculate the transmission angle as the light exits side C.
![optics - Why does light ray not change direction when it pass though the curve part of the semi-circular glass block? - Physics Stack Exchange optics - Why does light ray not change direction when it pass though the curve part of the semi-circular glass block? - Physics Stack Exchange](https://i.stack.imgur.com/eKMye.jpg)