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CBSE Class 10 Answered

dispersive power
Asked by SSHHII | 16 Oct, 2009, 10:16: PM
Expert Answer

Dispersive power is  measure of the power of a medium to separate different colors of light, equal to (n2n1)/(n - 1), where n1 and n2 are the indices of refraction at two specified widely differing wavelengths, and n is the index of refraction for the average of these wavelengths, or for the D line of sodium.

Answered by | 17 Oct, 2009, 11:44: PM
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