BHU PET 2015 M. com Question Paper with Answer Key PDFs

BHU PET Questions

• 1.

  If a black body radiation enclosure expands, so that its volume becomes 64 times, the temperature of the enclosure becomes:
  

  • One fourth
    
  • Four times
    
  • 16 times
    
  • 8 times
    
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• 2.

  States of thermodynamic equilibrium can be described in terms of:
  

  • Macroscopic thermodynamic coordinates
    
  • Macroscopic thermodynamic coordinates that involve time also
    
  • Microscopic coordinates
    
  • Microscopic coordinates that involve time also
    
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• 3.

  Select the word which has been correctly spelt:
  

  • Comparison
    
  • Comperison
    
  • Comparision
    
  • Comperision
    
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• 4.

  The acceleration of a frame of reference, fixed on the earth’s surface at the equator and rotating with the earth, once a day will be:
  

  • \(3.4 \times 10^{-2} \, m/s^2\)
    
  • \(0.004 \, m/s^2\)
    
  • \(7.15 \times 10^7 \, m/s^2\)
    
  • \(61.2 \, m/s^2\)
    
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• 5.

  The radius of the first zone in a zone plate of focal length 40 cm for light of wavelength 4000 Å is:
  

  • 0.4 cm
    
  • 0.04 cm
    
  • 0.16 cm
    
  • 0.010 cm
    
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• 6.

  Select the word which has been correctly spelt:
  

  • Superintendant
    
  • Superintendant
    
  • Superintandant
    
  • Superintendent
    
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