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JSS3: BASIC SCIENCE - 2ND TERM

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  1. Light Energy | Week 1
    2 Topics
  2. Reflection of Light | Week 2
    5 Topics
    |
    1 Quiz
  3. Sound Energy | Week 3
    4 Topics
  4. Sound Energy - Echoes, Hearing | Week 4
    2 Topics
    |
    1 Quiz
  5. Electrical Energy - Concept of Electrical Flow | Week 5
    2 Topics
  6. Arrangement of Resistors | Week 6
    3 Topics
  7. Electrical Meter Reading and Billing | Week 7
    2 Topics
    |
    1 Quiz
  8. Magnetism | Week 8
    2 Topics
  9. Laws of Magnetism | Week 9
    4 Topics
    |
    1 Quiz
  10. Radioactivity | Week 10
    5 Topics
    |
    1 Quiz



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Dispersion is the separation of white light into its component colours. The dispersion is due to the fact that the different colours of white light travel at different speeds through a glass prism. Some materials are able to disperse light into different components.

When white light falls on a triangular glass prism, the prism bends the rays, each colour in it is refracted at different angles, producing a coloured band and this band is made up of the different colours found in the rainbow (The colours of the rainbow are Red, Orange, Yellow, Green, Blue, Indigo, and Violet). The series of colours is called a Spectrum. In this case, we describe the spectrum as the visible spectrum because it can be seen.

Dispersion
Dispersion of white light.

Another material that can disperse light is the air after rainfall, in which the seven components of light are seen in the sky. This is called a Rainbow.

rainbow
Rainbow.

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