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Dispersion of Light

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Multiple Choice

The angles of minimum deviations are 53$^{\circ}$ and 51$^{\circ}$ for blue and red colors respectively produced in an equilateral glass prism. The dispersive power is :

  1. $\dfrac{2}{51}$
  2. $\dfrac{1}{26}$
  3. $\dfrac{1}{52}$
  4. $\dfrac{1}{51}$
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