Dispersion and Spectrometer

• When a beam of white light is made to fall on one refracting face of the prism, it splits i...}
  Akshamala

Angular Dispersion and Deviation without Dispersion

•  The mean deviation of light is measured by the deviation of yellow light as this devi...}
  Akshamala

Dispersion without Deviation

$$1,\;\omega'<\omega \;will\; be\; negative. \;This\; means\; that \;the\; order \;of \;the \;...}

Akshamala

Chromatic Aberrations in Lenses

• The combination of two thin lenses in which their combination is free from chromatic aberra...}
  Akshamala

Spherical Aberration in a Lens and Scattering of Light

• Spherical aberration can be reduced either by cutting off the paraxial rays or by cutting o...}
  Akshamala