Two types of lamps are given below .
Discharge lamp
If nitrogen gas is filled in each lamp,what change will happen to their working ?

Two types of lamps are given below. Filament lamp. Why is it said that the use of filament lamp must be controlled ?

Observe the diagram and answer the questions below. What change will happen to the circuit when S_3 is switched on ?

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

Two chemical reactions are given below: (2) Give the name of each reaction.

Some polymers are given below: PVC. Name the monomer present in each polymer and Identify the type of polymerisation involved in it.

Incandescent lamp, discharge lamp , C.F.L, LED lamp, arc lamp are given for observation . Answer the following questions after observing them. Name the lamps which belong to the group of discharge lamp.

If a bulb is lit after rejoining the parts of a broken filament , what change will occur in the intensity of the light from the lamp ? What will be the change in the power of the bulb ?