If the maximum force in addition to the weight required to pull a wire frame 5.0 cm long from water surface at temperature of `20^(@)` C is 720 dyne t

Question

If the maximum force in addition to the weight required to pull a wire frame 5.0 cm long from water surface at temperature of `20^(@)` C is 720 dyne t

If the maximum force in addition to the weight required to pull a wire frame 5.0 cm long from water surface at temperature of `20^(@)` C is 720 dyne the surface tension of water will be
A. `72.0`dyne/cm
B. 145 dyne/cm
C. `7.28` dyne/cm
D. `7.28` N/m

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
S.T = `F/(2l) = 720/10 = 72 ` dyne/cm

4 views Answered 2023-02-05 15:29