Light frequency from an incandescent lamp depends on the
A) transparency of glass.
B) voltage applied to the lamp.
C) electrical resistance of the lamp.
D) amount of electrical energy transformed.
E) rate of atomic and molecular vibrations.

Question

Quizplus · Accepted Answer

The frequency of light emitted by an incandescent lamp is determined by the rate of atomic and molecular vibrations within the filament. When the filament is heated by the electrical current, atoms and molecules vibrate more rapidly, emitting light at frequencies that correspond to the energy levels of these vibrations.

Light Frequency from an Incandescent Lamp Depends on the