Why Na lamp is used in a polarimeter ?



Why Na lamp is used in a polarimeter ?

  • Sodium (Na) Lamp is used in a polarimeter because it gives monochromatic light and also gives high-energy output. High sensitivity and S/N ratio.
  • Line spectrum i.e. gives monochromatic light of 589nm.
  • A polarimeter is a scientific instrument used to measure the angle of rotation caused by passing polarized light through an optically active substance.
 Na lamp is used in a polarimeter

Na lamp is used in a polarimeter


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