If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is

If 15230 And 15145 Then Dispersive Power Of Crown Glass Physics QuestionIf 15230 And 15145 Then Dispersive Power Of Crown Glass Physics Question

If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is

Options

(a) 0.0164
(b) 0.00701
(c) 0.0132
(d) 0.032

Correct Answer:

0.0164

Explanation:

Here μᵥ=1.5230and μʀ=1.5145

Therefore, mean refractive index, μ =(1.523+1.5145) /2 = 1.5187

Now, dispersive power, ω is given by,

ω =(μᵥ-μʀ)/(μ-1) =(1.5230 – 1.5145)/(1.5187 – 1) =0.0164

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