Classifythe objects or materials given below as opaque, transparent ortranslucent, luminous or non-luminous:
Air,water, piece of rock, sheet of aluminium, mirror, wooden board, sheetof polythene, CD, smoke, sheet of plane glass, fog, piece of red hotiron, umbrella, lighted florescent tube, wall, sheet of carbon paper,flame of a gas burner, sheet of cardboard, lighted torch, sheet ofcellophane, wire mesh, kerosene stove, sun, firefly, moon.
Object | Object is Transparent/Translucent/Opaque | Object is Luminous/Non-luminous |
Air | Transparent | Non-luminous |
Water | Transparent | Non-luminous |
Piece of rock | Opaque | Non-luminous |
Sheet of aluminium | Opaque | Non-luminous |
Mirror | Opaque | Non-luminous |
Wooden board | Opaque | Non-luminous |
Sheet of polythene | Translucent | Non-luminous |
CD | Translucent | Non-luminous |
Smoke | Translucent | Non-luminous |
Sheet of plane glass | Transparent | Non-luminous |
Fog | Translucent | Non-luminous |
Piece of red hot iron | Opaque | Luminous |
Umbrella | Opaque | Non-luminous |
Lighted fluorescent tube | Opaque | Luminous |
Wall | Opaque | Non-luminous |
Sheet of carbon paper | Opaque | Non-luminous |
Flame of a gas burner | Translucent | Luminous |
Sheet of cardboard | Opaque | Non-luminous |
Lighted torch | Opaque | Luminous |
Sheet of cellophane | Translucent | Non-luminous |
Wire mesh | Translucent | Non-luminous |
Kerosene stove | Opaque | Luminous |
Sun | Opaque | Luminous |
Firefly | Opaque | Luminous |
Moon | Opaque | Non-luminous |