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- A standard, incandescent light bulb emits light when a filament is heated.
Question 1:
A standard, incandescent light bulb emits light when a filament is heated. How does a fluorescent bulb work?
A. Light is emitted when a mercury filament reacts with great pressure inside a glass bulb.
B. Light is emitted when argon gas reacts with an electrical current.
C. Light is emitted when solar energy reacts with a silk thread.
D. Light is emitted when mercury vapor is heated.
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