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Grade 12Wave Optics

The number of modes of vibration per unit volume between 10000A nd 20000A is

Profile image of Bhuvanesh Kumar
7 Years agoGrade 12
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1 Answer

Profile image of rajnish
7 Years ago
  1. number of modes of vibration per unit volume for  channge in wavelenght  is equale to eight multiple of pi multiple of change of wavelenght divided by wavelenght to the power four and get the answer 37.7 multiple of ten to the power fifteen  

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