A small pin fixed on a table top is viewed from above from a distance of 50cm. By what distance would the pin appear to be raised if it is viewed from the same point through a 15cm thick glass slab held parallel to the table? Refractive index of glass = 1.5. Does the answer depend on the location of the slab?

A small piece of paper stucjk on a glass shpere of 5 cm radius is viewed through the glass from the position directly opposite .Find the position of the image .Refractie index of glass is 1.5.

A glass sphere of radius 5 xx 10^-2 m has a small bubble 2 xx 10^-2m from its centre. The bubble is viewed along a diameter of the sphere, from the side on which it lies. How far from the sphere will it appear? Refractive index of glass 1.5.

A small bulb is placed at the bottom of a tank containing water to a depth of 80cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)

A glass slab of thickness 12 mm is placed on a table .The lower surface of the slab has a black spot.At what depth from the upper surface will th espot appear,when viewed fromo above?The refractive index of glass =1.5.

A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5.The distance of the virtual image from the surface of the sphere is

A small point object is placed in air at a distance of 60 cm from the convex spherical refracting surface of refractive index 1.5.If radius of curvatrure of the spherical surface is 25 cm,calculate the power of the refracting surface.

The bottom of a container is a 4.0 cm thick glass (mu=1.5) slab. The container contains two immiscible liquids A and B of depths 6.0 and 8.0 cm respectively. What is the apparent position of a scratch on the outer surface on the bottom of the glass slab, when viewed through the container? Refractive indices of A and B are 1.4 and 1.3 respectively.

A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water,when both are traversed by the same monochromatic light.If the refractive index of water is 4//3 ,what is the refractive index of glass?