take around 1oocm3of water in a 500cm3beaker. immence an empty test tube vertically .we can see the shiny surface of the test tube unside the water as if surface is silvered.fill test tube with water the shiny surface disappears reason?
when we powder the coloured bangle pieces we can see tyhe change in the colour why?
immmence a glass bottle in a vessel containing water.heat the vessel slowly.the bottle does not break even if the water begins to boil.why?
Why ceramic pottery forms very tiny and invisible holes and not and not big holes
why cement is called a portland cement
why is glass called a cool liquid
pickle is stored in ceramics jar but not earthen jar
take around 1oocm3of water in a 500cm3beaker. immence an empty test tube vertically .we can see the shiny surface of the test tube unside the water as if surface is silvered.fill test tube with water the shiny surface disappears reason?
when we powder the coloured bangle pieces we can see tyhe change in the colour why?
immmence a glass bottle in a vessel containing water.heat the vessel slowly.the bottle does not break even if the water begins to boil.why?
Why ceramic pottery forms very tiny and invisible holes and not and not big holes
why cement is called a portland cement
why is glass called a cool liquid