Geometrical OpticsHard
Question
An object is immersed in a fluid. In order that the the object becomes invisible, it should :
Options
A.behave as a perfect reflection
B.absorb all light falling on it
C.have refractive index one
D.have refractive index exactly matching with that of the surrounding fluid
Solution
An object is seen when reflected light from object enters into eyes when refractive index exactly same then no reflection from the object.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A parallel beam of white blight falls on a convex lens. Images of blues, red and green light are formed on other side of...A cylindrical tube (μw = 4/3) is closed at its both ends by two silvered plane-convex lens as shown in the figure. ...Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is 60o). In the posi...Which one of the following form(s) a virtual and erect image for allpositions of the objecte ?...The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real and is one-third the...