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the phenomena in this picture is dispersion. when a beam of white light travels through a prism it will disperse to its SEVEN unique colours NAMELY violet, Indigo, blue, green, yellow, orange and RED. also known as {VIBGYOR}.

The X is a beam of white light.

The Y PART is Triangular Prism.

The Z part is VIBGYOR colours.

Additional information :

  • The red COLOUR has the longest wavelength
  • The violet colour has the shortest wavelength

Hope this helps you.

Thank you for your question it had helped me to think.



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