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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.

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

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 :)

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 :)

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