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.
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Answer:
Opaque: A piece of rock, a sheet of aluminium, a mirror, a wooden board, a CD, an umbrella, a wall, a sheet of carbon paper, a sheet of cardboard. Transparent: Air, water, a sheet of plane glass. Translucent: A sheet of polythene, smoke, fog, a sheet of cellophane, a wire mesh.
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Answer:
Opaque: A piece of rock, a sheet of aluminium, a wooden board, A CD, an umbrella, a wall, a sheet of cardboard, a sheet of cellophane
Transparent: Air, Water
Translucent: Smoke, Fog
Luminous: A piece of red got iron, kerosene stove, sun, firefly
Non Luminous: Moon
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selfemplompgmailcom:
what about flame of the burner
umm...by my opinion...it's common,it can be classified in both opaque and transparent... because...if the flame is high the it's opaque and if its low then it's transperant
and I thik so you wanted to comment me but u have commented on another answer
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