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1.
The surface energy of a liquid drop is 
. It is sprayed into 1000 equal droplets. Then its surface energy becomes
. It is sprayed into 1000 equal droplets. Then its surface energy becomes
2.
The working of an atomizer depends upon
3.
An L-shaped tube with a small orifice is held in a water stream as shown in fig. The upper end of the tube is 
above the surface of water. What will be the height of the jet of water coming from the orifice? Velocity of water stream is 
above the surface of water. What will be the height of the jet of water coming from the orifice? Velocity of water stream is
4.
Work done forming a liquid drop of radius R is 
and that of radius 
. The ratio of work done is
and that of radius . The ratio of work done is
5.
Two bodies are in equilibrium when suspended in water from the arms of a balance. The mass of one body is 
and its density 
. If the mass of the other is 
, its density in 
is
and its density . If the mass of the other is , its density in is