RAY OPTICS AND OPTICAL INSTRUMENTS Set 2

A monochromatic beam of light passes from a denser medium into a rarer medium. As a result

In an astronomical telescope in normal adjustment, a straight black line of length is drawn on the objective lens. The eyepiece forms a real image of this line. The length of this image is . The magnification of the telescope is

Which one of the following is not associated with total internal reflection

As the position of an object () reflected from a concave mirror is varied, the position of the image also varies. By letting the changes from 0 to the graph between versus will be

A triangular prism of glass is shown in the figure. A ray incident normally to one face is totally reflected, if . The index of refraction of glass is

is a right angled prism with other angles as and . Refractive index of prism is 1.5. has a thin layer of liquid. Light falls normally on the face .  For total internal reflection, maximum refractive index of liquid is

In the formation of primary rainbow, the sunlight rays emerge at minimum deviation from rain-drop after

Which of the following graphs is the magnification of a real image against the distance from the focus of a concave mirror

A ray of light incident normally on one face of a right angled isosceles prism. It them grazes the hypotenuse. The refractive index of the material of the prism is

Each quarter of a vessel of depth is filled with liquids of the refractive indices and from the bottom respectively. The apparent depth of the vessel when looked normally is