TIR Flashcards
1
Q
What is the critical angle
A
it is an angle of incidence when angle of refraction = 90
2
Q
When does TIR occur
A
it occurs when the angle of incidence is greater than the critical angle of a medium and does not refract in that medium, it only reflects inside the medium
3
Q
critical angle formula
A
c= sin-1(1/n)
4
Q
uses of optical fibres
A
used in data transfer and in medicine
5
Q
what are the conditions required for TIR
A
light needs to pass from dense to rarer medium
the angle of incidence should be greater than the critical angle
