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 langth of a needle floating on water is 2.5 cm . How much minimum force in addition to the weight of the needle, will be needed to lift the needle above the surface of water ? Surface tension of water =7.2 xx 10^(-4) "Ncm"^(-1).

The length of needle floating on the surface of water is 1.5 cm.The force in addition to its weight required to lift the needle from water surface will be (Surface tension of water = 7.5 N//cm)

The length of needle foating on the surface of water is 1.5 cm the force in addition to its weight required to lift the needle from water surface will be (surface tension of water =7.5N//cm )

The length of needle foating on the surface of water is 1.5 cm the force in addition to its weight required to lift the needle from water surface will be (surface tension of water =7.5N//cm )

The length of needle foating on the surface of water is 1.5 cm the force in addition to its weight required to lift the needle from water surface will be (surface tension of water =7.5N//cm )

A needle of length 5 cm is floating on the surface of water. Calculate the minimum force needed to lift the needle above the aurface of water. Surface tension of water is 0.073 N/m.

If the length of a needle floating on water is 2 cm then the additional force due to surface tension required to pull the needle out of water will be

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

If the length of a needle floating on water is 2 cm then the additional force due to surface tension required to pull the needle out of water will be. S.T of water=7.0xx10^-2N//m)