📊 Physics
Q. The illuminating powers of two sources are compared by
  • (A) A spectrometer
  • (B) A photometer
  • (C) A polarimeter
  • (D) A fluxmeter
✅ Correct Answer: (B) A photometer

Explanation: The illuminating powers of two sources are compared by a photometer.

Explanation by: Team MCQ Buddy
The illuminating powers of two sources are compared by a photometer.

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