Lead oxide
Lead
Zinc
Manganese dioxide
The cause for the Tsunami, as deduced by the seismologists, is
The cells are connected in series to
The characteristic invalid for head radiation is that it travels :
The Choke used with a tube light is basically
The class C insulation can withstand
The clear sky looks blue because
The coil wire in the electric room heater or electric cooking heater is called _
The colour of sky seems blue due to
The colour of the ocean appears blue because the sunlight falling on it is
The colours of stars depend on their
