Geometrical OpticsHard
Question
A thin prism of angle 15o made of glass of refrective inducx μ1 = 15 is combined with another prism of glass of refrective index μ2 = 1.75 The combination of the prism produces dispersion without deviation. The angle of the second prism should be
Options
A.5o
B.7o
C.10o
D.12o
Solution
For dispersion without deviation
δ1 + δ1 = 0
(μ1 - 1) A1 + (μ2 - 1)A2 = 0
A2 = -
Subsituting the given values, we get
-ve sign shows that two prism must be joined in opposition.
δ1 + δ1 = 0
(μ1 - 1) A1 + (μ2 - 1)A2 = 0
A2 = -
Subsituting the given values, we get
-ve sign shows that two prism must be joined in opposition.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A lens of focal length ′f′ is placed in between an object and screen at a distance ′D′. The lens...Look at the ray diagram show, what will be the focal length of the 1st and the 2nd lens. if the incident light ray passe...A plano-convex lens has focal f = 20 cm. If its plane surface is silvered, then the new focal length will be :-...Let the x - z plane be the boundary between two transparent media. Medium 1 in z ≥ 0 has a refractive index of ...A student performed the experiment of determination of focal length of a concave mirror by u - v method using an optical...