Light when travelling in the electromagnetic spectrum in a void always has a constant speed of 3x108 m/s. When this passes through a solid or liquid which consists of a …show more content…
Furthermore, the refractive index is used to calculate the change in the angle at the point of transition while having no influence over the distance travelled inside the prism. Due to this, it supports the previous statement as if it does not affect distance travelled, the shape of the prism should not matter.
Amrita states that the standardised value for the dispersive power of a glass prism should lie between 0.04 and 0.05. The results obtained while conducting this experiment do lie within this expected value when taking into consideration the uncertainty calculated for the dispersive power. There are numerous reasons why the dispersive power could be almost out of the range of the standardised value including but not limited to a measurement error or there may have been impurities in the glass prism that was throughout the trial