JEE Main 2026 — Mechanical Properties of Fluids Question with Solution
JEE Main 2026 (02 April Shift 2)
Question
The surface tension of a soap bubble is N/m. The work done in increasing the diameter of bubble from cm to cm is J. The value of is _______. (Take )
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Initial radius cm m
Final radius cm m
Surface tension N/m
A soap bubble has two free surfaces. The change in total surface area is given by:
m
Work done
J
Comparing with J, we get .
Answer:
Final radius cm m
Surface tension N/m
A soap bubble has two free surfaces. The change in total surface area is given by:
m
Work done
J
Comparing with J, we get .
Answer:
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