SATHEE: Properties Of Solids And Liquids Question 376

Properties Of Solids And Liquids Question 376

Question: The maximum force, in addition to the weight required to pull a wire of 5.0 cm long from the surface of water at temperature $20^{o} C$ , is 728 dynes. The surface tension of water is

Options:

A) 7.28 N/cm

B)7.28 dyne/cm

C) 72.8 dyne/cm

D) $7.28 \times 10^{2}$ dyne/cm

Show Answer

Answer:

Correct Answer: C

Solution:

$T = \frac{F}{2 l} = \frac{728}{2 \times 5}$

$T = 72.8 d y n e / c m$

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Properties Of Solids And Liquids Question 376

Question: The maximum force, in addition to the weight required to pull a wire of 5.0 cm long from the surface of water at temperature20oC , is 728 dynes. The surface tension of water is

Options:

Answer:

Solution:

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Question: The maximum force, in addition to the weight required to pull a wire of 5.0 cm long from the surface of water at temperature $20^{o} C$ , is 728 dynes. The surface tension of water is