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In a certain spectrum produced by a glas...

In a certain spectrum produced by a glass prism of dispersive power `0.0305,` it is found that the refractive index for the red ray is `1.645.`and that for the violet ray is `1.665`. What is the refractive index for the yellow ray?

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The correct Answer is:
A
Dispersion power,
`omega=(mu_v-mu_r)/(mu_y-1)`
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DC PANDEY-REFRACTION OF LIGHT-Level 1 Subjective
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