State the phenomena observed in the above diagram. Explain with reference to the
diagram, which of the two lights mentioned above will have the higher wavelength?
Answer:
The diagram shows the phenomenon called Dispersion of Light through a glass prism .
- Dispersion of light is the phenomenon of splitting white light into its component colours when passed through a transparent medium.
- White light is split into 7 colours in decreasing order of their wavelengths and/or velocity from top to bottom when passed through a glass prism.
Therefore, Yellow light has a higher wavelength than Blue light .