ects or materials given below as opaque, transparent ortranslucent and luminous or nonluminous:ium, a mirror, a wooden board, aAir, water, a piece of rock, a sheet of aluminisheet of polythene, a cD, smoke, a sheet of plane glass. fog, a piece of red hotIron, an umbrella, a lighted fluorescent tube, a wall. a sheet of carbon paperthe flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet ofcellophane, a wire mesh, kerosene stove, sun, Brefly, moon.Can you think of creating a shape that would give a circular shadow if held inone way and a rectangular shadow if held in another way?In a completely dark room, if you hold up a mirror in front of you, will you see areflection of yourself in the mirror?

ects or materials given below as opaque, transparent ortranslucent and

1.	ects or materials given below as opaque, transparent ortranslucent and luminous or nonluminous:ium, a mirror, a wooden board, aAir, water, a piece of rock, a sheet of aluminisheet of polythene, a cD, smoke, a sheet of plane glass. fog, a piece of red hotIron, an umbrella, a lighted fluorescent tube, a wall. a sheet of carbon paperthe flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet ofcellophane, a wire mesh, kerosene stove, sun, Brefly, moon.Can you think of creating a shape that would give a circular shadow if held inone way and a rectangular shadow if held in another way?In a completely dark room, if you hold up a mirror in front of you, will you see areflection of yourself in the mirror?
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