In an electric bulb, light is produced due to the glowing of
$(a)$. the glass case of the bulb
$(b)$. the thin filament
$(c)$. the thick wires supporting the filament
$(d)$. gases inside glass case of the bulb.

AcademicPhysicsNCERTClass 6

When the current is passed through an electric bulb, the filament of the bulb glows and the bulb produces light.
 So, option $(b)$ is correct.

Updated on 10-Oct-2022 13:30:38