Question:

Which has more luminous efficiency?

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Fluorescent tubes are more efficient in converting electrical energy into visible light compared to incandescent bulbs.
Updated On: Jan 12, 2026
  • A 40W bulb
  • A 40W fluorescent tube
  • Both have same
  • Cannot say
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The Correct Option is B

Solution and Explanation

Fluorescent tubes generally have a higher luminous efficiency compared to incandescent bulbs due to their ability to convert more electrical energy into visible light rather than heat.
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