Physics-
General
Easy

Question

The magnetic susceptibility of a paramagnetic substance at negative 73 degree C is 0.0060, then its value atnegative 173 degreeC will be

  1. 0.0030    
  2. 0.0120    
  3. 0.0180    
  4. 0.0045    

The correct answer is: 0.0120


    X subscript m end subscript proportional to fraction numerator 1 over denominator T end fraction comma Therefore,
    fraction numerator X subscript 2 end subscript over denominator X subscript 1 end subscript end fraction equals fraction numerator T subscript 1 end subscript over denominator T subscript 2 end subscript end fraction
    fraction numerator X subscript 2 end subscript over denominator 0.0060 end fraction equals fraction numerator 273 minus 73 over denominator 273 minus 173 end fraction equals fraction numerator 200 over denominator 100 end fraction equals 2
    Or X subscript 2 end subscript equals 2 cross times 0.0060 equals 0.0120

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