Science, asked by hrudyajlal4292, 1 year ago

Why do people blow air on spectada before cleaning them?

Answers

Answered by Anonymous
2
⚫ As a result, the water vapours present in the air surrounding the glass condense and get attached to the glass surface. ⚫hence the glass can be wiped properly due to presence of water droplets. ⚫so , people blow air into their spectacles before cleaning them.
Answered by Anonymous
5

During exhalation (or breathing out), carbon dioxide is released along with water vapours. If one breathes out onto glass, the released water vapours collide with the surface of the glass, thereby making it cooler.

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