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A direct vision spectroscope has been designed to obtain dispersion without deviation by arranging alternate inverted thin prisms of crown glass (refractive index ₁= 2 ) and flint glass ( ₂= 3 ) with refracting angle _ fint =3^ . The refracting angle _ crown of the crown glass prism is

Options

  1. A3.0^
  2. B4.5^
  3. C5.3^
  4. D6.0^

Correct answer

C. 5.3^

Step-by-step solution

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