Four solid spheres made from the same metal are heated to the same temperature. Which sphere at the start loses thermal energy by radiation at the greatest rate?
- Adiameter of $10\,\text{cm}$ with a dull surface
- Bdiameter of $10\,\text{cm}$ with a shiny surface
- Cdiameter of $5\,\text{cm}$ with a dull surface
- Ddiameter of $5\,\text{cm}$ with a shiny surface