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Home / Doubts and Solutions/ICSE/Class 11 Science/Physics

1st numerical plz

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Asked by lovemaan5500 29th September 2018, 8:54 PM
Answered by Expert
Answer:
Surface Tension of liquid surface force/length or energy/area .
 
Let us assume Surface tension of soap solution = 0.03 N/m
 
Then energy or workdone for 1 cm2 area = T×2A = 0.03×2×1×10-4  = 6×10-6 J
 
where A is area. bubble has two surfaces , hence area is multiplied by two
Answered by Expert 3rd October 2018, 9:24 PM
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