SC-1434
Radiation
Lower Sec Science · Secondary 2 · Hard · Radiation
A boy shines a torch at a metal plate and a wooden board placed side by side. After 10 minutes, the metal plate feels warmer than the wooden board. Which statement best explains this in terms of heat transfer by radiation?
- The metal plate absorbs more thermal radiation and conducts heat faster than wood.
- The wooden board reflects all the thermal radiation.
- Radiation cannot be absorbed by metal surfaces.
- Only conduction, not radiation, can heat the metal plate.
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