Question

so this is my question


Classify the objects or materials given below as opaque, transparent or

translucent and luminous or non-luminous:

Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a

sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot

iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper,

the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of

cellophane, a wire mesh, kerosene stove, sun, firefly, moon.​

Answer 1

Opaque - A piece of rock, a sheet of aluminium, a wooden board, a CD, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, a sheet of cardboard, a wire mesh, kerosene stove, sun, firefl, moon, lighted torch

translucent- the flame of a gas burner, a sheet of cellophane, smoke

transparent - air, water, mirror, polythene, glass,