- #1
blaziken's_charizard
- 34
- 0
http://img210.imageshack.us/img210/6094/questionuz8.png
i) What is the angle of refraction of the ray RS after it strikes the glass prism of refractive index=1.5?
ii) If the critical angle is 41.8 degrees, deduce whether the ray will suffer total internal reflection.
2. Homework Equations :
Snell's Law
3.
1) Snell's Law:
n=sin i / sin r
1.5=sin45/sinR
sinR * 1.5 = sin45
sinR = sin45 / 1.5
R = sin^-1 (sin45 / 1.5)
R= 28.1 degrees
2) I have no idea what I could do to deduce whether it would suffer TIR or not... please help. Thank you :)
i) What is the angle of refraction of the ray RS after it strikes the glass prism of refractive index=1.5?
ii) If the critical angle is 41.8 degrees, deduce whether the ray will suffer total internal reflection.
2. Homework Equations :
Snell's Law
3.
1) Snell's Law:
n=sin i / sin r
1.5=sin45/sinR
sinR * 1.5 = sin45
sinR = sin45 / 1.5
R = sin^-1 (sin45 / 1.5)
R= 28.1 degrees
2) I have no idea what I could do to deduce whether it would suffer TIR or not... please help. Thank you :)
Last edited by a moderator: