• R N Singh

      Articles written in Pramana – Journal of Physics

    • Stability of magnetopause boundary and generation of long period geomagnetic pulsations

      S P Mishra K D Misra R N Singh

      More Details Abstract Fulltext PDF

      The effect of irrotational electric field and tensorial plasma conductivity on the growth rate of Kelvin-Helmholtz instability has been investigated. It is shown that the presence of irrotational electric field alters the growth rate. The dependence of Pedersen conductivity on the growth rate has been shown. The Kelvin-Helmholtz perturbations generate a surface wave in the frozen-in plasma. The propagation of these waves gives rise to polarization of the transverse hydromagnetic pulsations. It is shown that the modified K-H spectrum would result in a corresponding change in polarization features of the hydromagnetic pulsations.

    • Vibrational spectra of 2, 3 and 2, 6 dichloro anilines

      R P Singh R N Singh

      More Details Abstract Fulltext PDF

      The infrared and laser Raman spectra of 2, 3 dichloro aniline and 2, 6 dichloro aniline have been recorded. The vibrational spectra have been analysed assumingCs andC2v point groups for 2, 3 dichloro aniline and 2, 6 dichloro aniline respectively. Assignments for fundamental vibrations, combination and overtone frequencies and internal modes of vibration of amino group have been proposed.

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