1.

The surface tension of water is 72 dyne per centimetre convert it in the SI unit

Answer» SURFACE tension is 72 DYNE PER cm so 1J=10^7 find hence 1dyne=10^-7 J. 1m=100cm and thus 1cm=10^-2 m. hence surface tension is 72×10^-7÷10^-2
J/m=72× 10^-5J/m in S.I. units


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