What are the advantages of using tungsten as a filament ?

Incandescent lamp, discharge lamp , C.F.L, LED lamp, arc lamp are given for observation . Answer the following questions after observing them. Which metal is used to make filament of an incandescent lamp ? What are the advantages of using this metal as a filament ?

What are the advantages of dihydrogen as a fuel?

In single phase generators armature functions as rotor whereas in power generators armature functions as stator What are the advantages of using armature as stator in power generators ?

What are the advantages of tissue culture?

What are the advantages of using discharge lamps instead of incandescent lamps ?

What are the advantages of Single Cell proteins?

Blue colour of sky is due to the phenomenon of scattering. What are the advantage of using infrared photography?