Some of the very old glass objects appear slightly milky instead of being transparent.

Rohit went to Jaipur with a school trip to visit some historical places. He and his friends observed that some old glass objects looked milky and windows pane of old buildings were looking slightly thicker at the bottom than at the top. Answer the following questions Under what conditions could quartz be converted into glass?

Rohit went to Jaipur with a school trip to visit some historical places. He and his friends observed that some old glass objects looked milky and windows pane of old buildings were looking slightly thicker at the bottom than at the top. Answer the following questions Is glass crystalline or amorphous?

Name some objects made from glass.

One face of a glass cube of side 0.06 m is silvered.An object is placed at a distance of 0.07 m from the face opposite to the silvered face.Looking from the object side,the image of the object appears to be 0.11 m behind the silvered face.Calclate the refrative index of the material of glass.

A glass can have the following views. Why is the top view of the glass a pair of concentric circles? Will the side view appear different if taken from some other direction? Think about this.

A small object is enclosed in a spere of glass 7 cm in radius .It si situated 1 cm from the centre and is veiwed from the side to whh it is nearest.where will it appear to be ,if refractive index is 1.4?Also find the appparent position of the oject as seen by an eye looking laong diameter throug greatest thickness of eh glass.

A card sheet divided into squares each of size 1 mm^2 is being viewed at a distance of 9 cm through a magnifying glass (a converging lens of focal length 10 cm) held close to the eye. What should be the distance between the object in converging lens and the magnifying glass if the virtual image of each square in the figure is to have an area of 6.25 mm^2 . Would you be able to see the squares distinctly with your eyes very close to the magnifier ?