When we blow air on a clean mirror, it becomes cloudy.What does this indicate?
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5
Answer:
When we blow air on the mirror surface that being cooler allows the vapours to cool down and hence cloudy surface is formed. With time the cooled vapours get evaporated as room temperature is sufficient to evaporate them hence they disappear.
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2
Answer:
This indicates that when we blow out from our mouth the water vapour also comes out with carbon dioxide and air.
which makes the mirror cloudy.
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