The maximum force, in addition to the weight required to pull a wire of `5.0cm` long from the surface of water at temperature `20^@C`, is 728 dynes. The surface tension of water is

The maximum force in addition to the weight required to pull a wire frame 5.0 cm long from a water surface at a temperature of 20^@ C is 720dyne . The surface tension of water is

The maximum force in addition to the weight required to pull a wire frame 5.0 cm long from a water surface at a temperature of 20^@ C is 720dyne . The surface tension of water is

If the maximum force in addition to the weight, required to pull a wire frame 5.0 cm long from a water surface at a temperature of 20^@C is 720 dyne, the surface tension of water will be

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

The surface tension of water at 0^(@) C is 75.5 dyn/cm. Calculate the surface tension of water at 25^(@)C .

The force required to take away a flat circular plate of radius 2 cm from the surface of water, will be (the surface tension of water is 70 dyne/cm)

The length of a needle floating on water is 2.5 cm . The minimum force in addition to its weight needed to lift the needle above the surface of water will be (surface tension of water is 0.072 N//m )

The length of a needle floating on water is 2.5 cm . The minimum force in addition to its weight needed to lift the needle above the surface of water will be (surface tension of water is 0.072 N//m )