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light - Coggle Diagram

- - - - light passes through
    - - light passes through but light is scattered
    - - light does not pass through
- - - - in refraction the light ray is travelling from one medium to another medium due to which there is a change in the speed of the light
        
        when light travels from rarer medium to denser medium it bends towards normal
        
        when light travels from a denser medium to a rarer medium it bends away from normal
- - - - when beams of light pass through a prism the light waves of different wavelength travel at slightly different speeds and are spread out by a process called dispersion .