Illuminate Your Knowledge with Light Bulb Efficiency

Which statement is FALSE?

1) The efficiency of the incandescent and halogen lamps is less than 30LPW

2) Halogen lamps are more efficient than incandescent lamps

3) Incandescent lamps maintain their output better than halogen lamps

4) Incandescent and halogen lamps both use tungsten filaments

Final Answer:

The false statement is that incandescent lamps maintain their output better than halogen lamps. In reality, halogen lamps maintain their output better over time compared to incandescent lamps.

The student queried which statement is false regarding various types of light bulbs, specifically incandescent and halogen lamps. Based on the information given:

The efficiency of incandescent lamps is quite low, mostly because much of the energy they consume is converted into heat rather than light.

Halogen lamps are indeed more efficient than traditional incandescent lamps, partly due to their design that recycles heat to keep the filament hotter with the same energy input.

It is actually the halogen lamps that maintain their output better over time compared to incandescent lamps, due to their construction and the halogen cycle that helps the filament last longer and keep a consistent output.

Both incandescent and halogen lamps use a tungsten filament to produce light when electricity passes through it.

Considering these points, the false statement is number 3) "Incandescent lamps maintain their output better than halogen lamps."