Which of the following is a type of incandescent light source?

JAMB Physics 2023 297 views
Source: JAMB · 2023

Which of the following is a type of incandescent light source?

  1. Fluorescent lamp
  2. LED lamp
  3. Tungsten filament lamp ✓
  4. Neon lamp
Explanation

An incandescent lamp gives light because a thin wire is heated until it glows white-hot. The tungsten filament lamp does exactly this.

Fluorescent, LED and neon lamps make light in other ways, without a glowing hot filament.

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