Question

what are primary and secondary sources of light?​

Answer 1

Step-by-step explanation:

• Light comes from different sources called light sources; our main natural light source is the sun. Other sources include fire, stars and man-made light sources such as light-bulbs and torches.

Answer 2

Objects which create their own light for emission is called the primary source of light and objects which do not produce their own light instead receive light from a different source for emission is called as secondary source of light.

1. Primary Source of Light:

• Sun, flames, etc., come under the primary source of light.
• These sources of light can also have an ambient temperature which uses a chemical or electrical process to produce light like TV, computers, etc.,
• Examples: fireflies, mobile screen, etc.,

2. Secondary source of light:

• These lights usually require a primary source to produce lights.
• The moon does not produce its own light instead it receives light from the sun.
• They are not self-luminous.
• Examples: planets, animals, plants, etc.,