Internal Reflection

Question 1

Total Internal Reflection

Answer 1

• The angle of incidence is greater than the critical angle
• Occurs when light travels from a denser material to rarer material and all light is reflected back into the same material (Hence Internal Reflection of all light, Total)

Question 2

Critical Angle

Answer 2

The angle of incidence when the angle of refraction is 90 Degrees, and the ray changes from just refraction to total internal reflection

Question 3

Conditions for Total Internal Reflection

Answer 3

• The angle of incidence > The critical angle
• Light passes from a denser medium to a rarer medium

Question 4

Refractive Index Formula for Critical Angle

Answer 4

N= (1/Sin C)

C = Critical Angle

Question 5

Refractive Index Formula for Speed of Light

Answer 5

N = (C/V)

* C = to Speed of light in a Vaccum
* V = Speed of light in Medium

Question 6

Speed of Light

Answer 6

3 x 10 ^ 8 m/s

Question 7

Snell’s Law

Answer 7

(Sin i/Sin r) = (N2/N1)

Question 8

Incident Angle < Critical Angle

Answer 8

Incident Ray and Refracted Ray

Question 9

Incident ray = Critical Angle

Answer 9

Crtical angle is 90 Degrees

Question 10

Incident ray = to Refracted ray

Answer 10

Incident ray > Critical Angle

Question 11

Refractive Angle Formula

Answer 11

N = (Sin i/Sin r)

R = Inverse Sin (Sin i/N)