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MMLU-Pro / 9506 / A spotlight equipped with a 32-candle bulb concentrates the beam on a vertical…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A spotlight equipped with a 32-candle bulb concentrates the beam on a vertical area of 125 ft^2at a distance of 100 ft. What is the luminous intensity of the spot of light in the beam direction?

category

physics

options

  1. 16,000 candles
  2. 50,000 candles
  3. 64,000 candles
  4. 25,000 candles
  5. 10,000 candles
  6. 80,000 candles
  7. 32,000 candles
  8. 3,200 candles
  9. 4,000 candles
  10. 40,000 candles

src

stemez-Physics

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Source and history

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