JEE Main | 2014Geometrical OpticsHard
Question
A green light is incident from the water to the air - water interface at the critical angle(θ). Select the correct statement
Options
A.The entire spectrum of visible light will come out of the water at an angle of 90o to the normal
B.The spectrum of visible light whose frequency is less than that of green light will come out to the air medium
C.The spectrum of visible light whose frequency is more than that of green light will come out to the air medium
D.The entire spectrum of visible light will come out of the water at various angles to the normal
Solution
sin θc
For greater wavelength (i.e. lesser frequency) μ is less So, θc would be more. So, they will not suffer reflection and come out at angles less then 90o.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A short linear object of length b liesalong the axis of a concave mirror of focal length f at a distance u from the pole...A ray of light normally on the first refracting face of the prism of refracting angle A. The ray of light comes out at g...A ray of light incident on an equilateral prism at the minimum deviation position. The angle of refraction at the first ...A ray of light passes through a prism in a principle plane the deviation being equal to of incidence which which is equa...Two lenses in contact made of materials with dispersive powers in the ratio 2 : 1, behaves as an achromatic diverging fo...