Home Preparation for National Talent Search Examination (NTSE)/ Olympiad
Chapter : 3. Light Reflection
Sources of Light
(B) Sources of Light. The objects which emit (give) light are called luminous objects. It may be natural or man-made. Sun is a natural source of light and electric lamp, and oil lamp, etc. are man-made source of light. The Non-luminous objects do not emit light. However, such objects become visible due to the reflection of the light falling on them. Moon does not emit light. It becomes visible due to the reflection of the sunlight falling on it.