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Light And Verification Of Malus Law

Light And Verification Of Malus Law

Product Details:

  • Dimension(L*W*H) 300x62x82 mm Millimeter (mm)
  • Power > 2mW Ampere (amp)
  • Voltage 220V AC, 50Hz Volt (v)
  • Application Lab Equipment
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Price And Quantity

Product Specifications

  • Lab Equipment
  • 300x62x82 mm Millimeter (mm)
  • > 2mW Ampere (amp)
  • 220V AC, 50Hz Volt (v)

Product Description


When a light beam passes through a polarizer filter, it gets linearly polarized. When this linearly polarized light passes through analyzer, its intensity depends on the angular position of the analyzer. The maximum light intensity is transmitted when the optical axis of polarizer and analyzer coincide. The intensity of transmitted beam depends onthe angular position between the optical axis of the polarizer and analyzer (θ)and is defined by Malus law as I=I0 cos2θ where I0 is the intensity of incident light.

Further the intensity of light depends on the distance between the source and the detector and is defined by the inverse square law.


  • Pin hole photo detector.
  • He-Ne laser with in-built power supply.
  • Optical bench with central support.
  • Transversal saddle for Y-axis motion.



  • To measure the light intensity of planepolarized light as a function of the analyzer position.
  • To verify Malus law.
  • To verify inverse square law.



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