When white light passes through a triangular glass prism, there is dispersion because of
- diffraction of light
- polarisation of light
-
the difference in speed of the components of light
- the interference of light waves in glass
The correct answer is: C
Explanation
When white light passes through a prism, dispersion occurs because different colors (wavelengths) of light travel at different speeds in the glass. This causes the colors to spread out and form a spectrum, with red bending the least and violet bending the most.