1.

Classify the objects or materials given below as opaque, transparenttranslucent and luminous or non-luminousor2.Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, asheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of rediron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon pa

Answer»


Discussion

No Comment Found