Solution:
According to the surface tension, the properties on heating a glass melts on the surface and liquids are melted rounded shape so edges it has minimum surface area this is due to surface tension
There for the that required option is A
Sharp glass edges are heated for making them smooth (polishing of glass) which is due to its
According to the surface tension, the properties on heating a glass melts on the surface and liquids are melted rounded shape so edges it has minimum surface area this is due to surface tension
There for the that required option is A