0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A light ray from air is incident ( as shown in figure ) at one end of a glass fibre (refractive index, μ=1.5 ) making an incidence angle of 60o on the lateral surface, so that it undergoes a total internal reflection. How much time would it take to traverse the straight fiber of length 1km?
1015283_d2b0615e795843a9b3d9d5ca6b06729f.png
  1. 3.33μs
  2. 6.67μs
  3. 5.77μs
  4. 3.85μs

A
3.33μs
B
5.77μs
C
3.85μs
D
6.67μs
Solution
Verified by Toppr

Was this answer helpful?
36
Similar Questions
Q1
A light ray from air is incident (as shown in figure) at one end of a glass fiber (refractive index μ=1.5) making an incidence angle of 60 on the lateral surface, so that it undergoes a total internal reflection. How much time would it take to traverse the straight fiber of length 1 km


View Solution
Q2
A light ray from air is incident (as shown in figure) at one end of a glass fiber (refractive index μ=1.5) making an incidence angle of 60 on the lateral surface, so that it undergoes a total internal reflection. How much time would it take to traverse the straight fiber of length 1 km


View Solution
Q3
A light ray from air is incident (as shown in figure) at one end of a glass fiber (refractive index m = 1.5) making an incidence angle of 60o on the lateral surface, so that it undergoes a total internal reflection. How much time would it take to traverse the straight fiber of length 1 km

View Solution
Q4
A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence 45o and undergoes total internal reflection. lf μ is the refractive index of medium the possible values of μ are
View Solution