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Q. Lux is the SI unit of

  • (A) intensity of illumination
  • (B) luminous efficiency
  • (C) luminous flux
  • (D) luminous intensity
  • Correct Answer - Option(A)
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Explanation by: Admin
The lux (lx) is the SI derived unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square meter.

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