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प्रश्न
Refractive index of diamond with respect to air is 2.5. What will be refractive index of air with respect to diamond?
संख्यात्मक
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उत्तर
Given:
\[ {}^{\text{air}}\mu_{\text{diamond}} = 2.5 = \frac{5}{2} \]
Using the principle of reversibility of light:
\[ {}^{\text{diamond}}\mu_{\text{air}} = \frac{1}{{}^{\text{air}}\mu_{\text{diamond}}} \]
\[ = \frac{1}{2.5} \]
\[= \frac{2}{5}\]
= 0.4
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