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Grade 12th PassWave Optics

How can we define the dispersive power of a prism material?

Profile image of VAMSIKRISHNA NELLI
13 Years agoGrade 12th Pass
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2 Answers

Profile image of Gautham Pai M K
ApprovedApproved Tutor Answer13 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

Profile image of hemanth
12 Years ago

ans)The ratio of angular to mean deviation

it is independent on angle of prism