Sorting materials into groups Q1) short define:-1) Hardness2) Lustre3)

1.	Sorting materials into groups Q1) short define:-1) Hardness2) Lustre3) Colour
Answer» Hardnessis a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Lustre is a thin coating containing unoxidized metal which gives an iridescent glaze to ceramics. Colour is the property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.

Sorting materials into groups Q1) short define:-1) Hardness2) Lustre3) Colour

Answer»

Hardnessis a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion.

Lustre is a thin coating containing unoxidized metal which gives an iridescent glaze to ceramics.

Colour is the property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.