Q607
In a filament type light bulb most of the electric power consumed appears as
A.
Visible light
B.
Infra-red rays
AnswerC.
Ultra-violet rays
D.
Fluorescent light
Answer: Option B
Solution
Answer: Option B
Solution:
In a filament type light bulb most of the electric power consumed appears as Infra-red rays. When electricity flows through the fiber, it heats up. Depending on the filament temperature, the radiation is emitted from the filament.