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

A ray of light is incident at an angle α on the boundary separating two transparent media. It is transmitted. When angle a is increased very slightly ( by negligible amount ), the ray sufferes a total intenal reflection. The difference between the angles of deviation in two cases is :
  1. 2α
  2. 90α
  3. 180α
  4. 1802α

A
2α
B
180α
C
90α
D
1802α
Solution
Verified by Toppr

Incident angle=α
Reflected angle=900
Angle of deviation=900α
New angle of incidence=α+θ
New angle of reflection=α+θ
New angle of deviation18002(α+θ)
As,the α is increased very slightly so,θ0.
Thus,the New angle of deviation is 18002α

Was this answer helpful?
1
Similar Questions
Q1
A ray of light is incident at an angle α on the boundary separating two transparent media. It is transmitted. When angle a is increased very slightly ( by negligible amount ), the ray sufferes a total intenal reflection. The difference between the angles of deviation in two cases is :
View Solution
Q2
A ray of light incident on a transparent sphere at an angle π/4 and refracted at an angle r, emerges from the sphere after suffering one internal reflection. The total angle of deviation of the ray is?
View Solution
Q3
A light ray is incident at an angle 30o on a transparent surface separating two media. If the angle of refraction is 60o then critical angle is
View Solution
Q4
A light ray is incident a glass sphere at an angle of incidence of 45o as shown in figure. Find the total deviation suffered by ray of two successive reflection.
1050741_4c4bdbd53e0a45ac82d850f0a09f01ba.PNG
View Solution
Q5
A ray of light falls on the surface of spherical glass paperweight making an angle α with the normal and is refracted in the medium at an angle β. The angle of deviation of the emergent ray from the incident ray is
View Solution