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 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 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 )

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 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).

A small piece of wire of length 4 cm is floating on the surface of water. If a force of 560 dynes in excess of itss apparent weight is requried to pull it up from the surface find the surface tension of water.

A needle or a pin floats on the surface of water because of

A needle or a pin floats on the surface of water because of