Why does a sheet of paper placed very close to a high-power glowing filament lamp feel warm after a few…

Why does a sheet of paper placed very close to a high-power glowing filament lamp feel warm after a few minutes?
  1. Light energy converts paper into fuel
  2. The bulb emits heat energy along with light energy
  3. Air around the bulb loses all its heat energy
  4. Paper generates its own heat energy when illuminated

Solution

Incandescent filament bulbs transform electrical energy into both light energy and heat energy, warming nearby objects.

Asked in: Homi Bhabha Practice

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