The filament inside an incandescent electric bulb glows white-hot while surrounded by…
PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
The filament inside an incandescent electric bulb glows white-hot while surrounded by vacuum. The filament loses most of its heat to the surroundings by ______.
(a) convection within the bulb
(b) radiation through the glass envelope
(c) conduction along the metal leads
(d) conduction through the glass envelope