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Questions  

For crown glass, μv=1.523 and μr=1.5145. Dispersive power crown glass is 

a
0.928
b
0.0898
c
0.01638
d
0.1842

detailed solution

Correct option is C

μv=1.523, μr=1.5145∴ μy=1.523+1.51452=1.51875∴ ω=μv−μrμy−1=(1.523−1.5145)(1.51875−1)=0.01638

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