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  • Calculate the dispersive power for crown glass from the given data <img alt="\mu_{v}=1.523$, and $\mu_{R}=1.5145" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmu_%7Bv%7D%3D1.523%24%2C%20

Calculate the dispersive power for crown glass from the given data \mu_{v}=1.523$, and $\mu_{R}=1.5145

Option: 1

 0.1639


Option: 2

0.01639


Option: 3

1.639


Option: 4

2.639


Answers (1)

best_answer

\mathrm{Here \: \mu_{v}=1.523\: and \: \mu_{R}=1.5145}

Mean refractive index \mathrm{\mu=\frac{1.523-1.5145}{(1.51875-1)}=0.01639}

Dispersive power \omega is given by,

\omega=\frac{\mu_{v}-\mu_{R}}{(\mu-1)}=\frac{1.523-1.5145}{(1.51875-1)}=0.01639

Posted by

shivangi.bhatnagar

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