GK Question

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The SI unit of luminous intensity is ________.

  1. Lumen
  2. Lux
  3. Candela
  4. Watt

Answer: Candela

Candela (cd) is one of seven SI base units, measuring luminous intensity in a given direction. Lumen measures total luminous flux; lux measures illuminance. Important for photometry. [[NCERT Physics Class 11]]

Topic Physics - Units
Exam Relevance SSC JE, Railway NTPC, Banking IBPS