25
Question
The surface tension of water is 72 dyne/cm. Convert it in SI unit.
The surface tension of water is 72 dyne/cm. Convert it in SI unit.
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Solution
Surface tension of water = 72 dyne/ cm
We know that,
1 Dyne=10−5 N and 1 cm=10−2 m
Therefore, 72 dyne/cm =72×10−510−2 N/m
=72×10−3 N/m
=0.072 N/m.
Surface tension of water = 72 dyne/ cm
We know that,
1 Dyne=10−5 N and 1 cm=10−2 m
Therefore, 72 dyne/cm =72×10−510−2 N/m
=72×10−3 N/m
=0.072 N/m.
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