Last Activity: 12 Years ago
Dispersive power is the ratio of angular dispersion to the mean deviation.
For example the dispersive powers of red light and violet light are as follows: dv-dr/(dv+dr/2)=nv-nr/(nv+nr/2)-1
Last Activity: 11 Years ago
ans)The ratio of angular to mean deviation
it is independent on angle of prism
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Last Activity: 3 Years ago