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Science [5 Marks Each] QUE-ANS

Nature's Treasures · Gujarat Board (GSEB) STD 6 (GSEB - English Medium). 2 questions.

Questions

[5 Marks Each] QUE-ANS

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 15 Marks
Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?
Answer
Yes, there are many things which give a circular shadow if held in one way and a rectangular shadow if held in another way. For example: a cylinder, a circular disc etc.
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Question 25 Marks
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 fame 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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[5 Marks Each] QUE-ANS - Science STD 6 Questions - Vidyadip