A dry clean needle of diameter 'd' and density p when carefully placed on the surface of water remains floating. If T is the surface tension of water, then maximum value for the diameter 'd' of the needle for enabling it to float will be

A dry clean needle of diameter 'd' and density p when carefully placed

1.	A dry clean needle of diameter 'd' and density p when carefully placed on the surface of water remains floating. If T is the surface tension of water, then maximum value for the diameter 'd' of the needle for enabling it to float will be
Answer» `d= sqrt( ( 8rho pi)/( T g))` `d= sqrt((4 rho pi)/(T g ))` `d= sqrt((8T)/(rho PIG))` data INCOMPLETE ANSWER :C