BHU PET 2018 M.A HISTORY Question Paper with Answer Key PDFs

BHU PET Questions

• 1.

  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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• 2.

  If a particle is fixed on a rotating frame of reference, the fictitious force acting on the particle will be:

  • Coriolis force only
    
  • Centrifugal force only
    
  • Coriolis as well as centrifugal force
    
  • None of the three
    
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• 3.

  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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• 4.

  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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• 5.

  Mathematical formulation of the first law contains the idea of:
  

  • The existence of an internal energy function
    
  • The principle of the conservation of energy
    
  • The definition of heat as energy in transit by virtue of a temperature difference
    
  • All of the three
    
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• 6.

  In the inversion curve for a gas, in the region of cooling:
  

  • Joule-Kelvin coefficient is negative
    
  • Joule-Kelvin coefficient is positive
    
  • Joule-Kelvin coefficient is zero
    
  • None of the three
    
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