Refraction

Question 1

Refractive index of air

Answer 1

1

Question 2

Snells law

Answer 2

n1sinθ1=n2sinθ2

Question 3

Critical angle

Answer 3

Angle of incidence where the andgle of reflection is equal to 90*

Question 4

When does total internal reflection occur

Answer 4

When andgle of incidence is > critical angle

When refractive index goes from high to low

Question 5

Fiber optics components and uses

Answer 5

Core -> plastic/glass where light dravels theough
Cladding->increwses critical angle reducing MPD
Buffer- > protective later

Question 6

Uses of fiberoptics

Answer 6

Endoscopy

Communication signals

Question 7

Advantages of fober optics

Answer 7

Less energy loss per meter
More info transfered per second
Lighter and less volume
(More secure as cant be tapped into as easily
Not effected by electrical interferance )

Question 8

What is multipath dispersion

Answer 8

Light travels along fiber in different modes
Light that travels axially travels less distance and there for reaches the reciver quicker
Broadening the pulse causing an overlap of signals

Question 9

What is material dispersion

Answer 9

Light if different wavelenth travel at different speeds

Question 10

What happens when refractive index