BHU PET 2015 M.A. Sociology Question Paper with Answer Key PDFs

BHU PET Questions

• 1.

  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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• 2.

  At \( 4^\circ C \) for water, \( C_P = C_V \) because:
  

  • \( \left( \frac{\partial P}{\partial V} \right)_T = 0 \)
    
  • \( \left( \frac{\partial V}{\partial T} \right)_P = 0 \)
    
  • \( \left( \frac{\partial P}{\partial T} \right)_V = 0 \)
    
  • None of the three
    
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• 3.

  During a quasi-static process:
  

  • The system is not in thermodynamic equilibrium
    
  • The system is at all times infinitesimally near a state of thermodynamic equilibrium
    
  • The system is far away from a state of thermodynamic equilibrium
    
  • None of the three
    
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• 4.

  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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• 5.

  One liter atmosphere equals:
  

  • 101 Joule
    
  • 8.31 Joule
    
  • 0.082 Joule
    
  • \( 1.01 \times 10^5 \) Joule
    
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• 6.

  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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