A rectangular film of liquid is extended from (4 cm × 2cm) to (5 cm × 4 cm). If the work done is 3 \times 10^{–4 }J, the value of the surface tension of the liquid is [NEET 2016 P2]

Correct Answer is : 0.125Nm–1

Class 11 NEET Physics Properties of Matter Questions

Question : 34 of 90

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A rectangular film of liquid is extended from (4 cm × 2cm) to (5 cm × 4 cm). If the work done is 3×10–4J, the value of the surface tension of the liquid is

[NEET 2016 P2]

8.0‌Nm–1
0.250‌Nm–1
0.125‌Nm–1
0.2‌Nm–1

Validate

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