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प्रश्न
A water-proofing agent changes the angle of contact ______
विकल्प
from obtuse to acute.
from acute to obtuse.
from obtuse to π/2.
from acute to π/2.
MCQ
रिक्त स्थान भरें
उत्तर
A water-proofing agent changes the angle of contact from acute to obtuse.
Explanation:
To keep the material from getting wet, waterproofing chemicals are utilized. It denotes that the contact angle is obtuse.
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Angle of Contact
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