Fraunhofer lines are produced by the absorption of light in

  • A
    the chromosphere of the sun
  • B
    the photosphere of the sun
  • C
    sodium
  • D
    hydrogen

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Similar Questions

Light of different colours propagates through air:

The difference in the number of wavelengths, when yellow light propagates through air and vacuum columns of the same thickness, is one. Find the thickness of the air column. Given: Refractive index of air $\mu_a = 1.0003$, Wavelength of yellow light in vacuum $\lambda_0 = 6000 \text{ Å}$.

The radius of the central zone of a circular zone plate is $2.3\,mm$. The wavelength of the incident light is $5893\,\mathring{A}$. The source is at a distance of $6\,m$. What is the distance of the first image in meters?

Write the difference between the interference pattern and diffraction pattern.

Laser is/are:

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