Question

Classify the following into transparent, opaque and translucent objects: Wax, spectacles, a heap of salt, a stone, dense smoke, wood, skin, balloon, rubber, membrane of a tabla, blood and milk.​

Answer 1

Opaque: heap of salt, dense smoke, wood, skin, blood, milk, membrane of tabla, stone
Translucent: balloon, rubber, wax
Transparent: spectacles