| Luminous objects, such as: | ||||||
| The sun |
 |
|||||
| Candle flames |
 |
|||||
| Electric light bulbs |
 |
|||||
| radiate light and so are luminous. | The sun also radiates heat energy. |
|
|
|
|
|
|
|
|
|
|
|
|
| Luminous objects, such as: | ||||||
| The sun |
|
|||||
| Candle flames |
|
|||||
| Electric light bulbs |
|
|||||
| radiate light and so are luminous. | The sun also radiates heat energy. |
