TS EAMCET Question Paper 2021 (Available): Check Previous Year Question Paper with Solution PDF (2023-2015)

TS EAMCET 2021 Questions

• 1.

  A ball is projected vertically up with speed \( V_0 \) from a certain height \( H \). When the ball reaches the ground, the speed is \( 3V_0 \). The time taken by the ball to reach the ground and height \( H \) respectively are:

  • \( \frac{V_0}{g} \), \( \frac{V_0^2}{2g} \)
    
  • \( \frac{V_0}{g} \), \( \frac{3V_0^2}{2g} \)
    
  • \( \frac{2V_0}{g} \), \( \frac{V_0^2}{2g} \)
    
  • \( \frac{3V_0}{g} \), \( \frac{3V_0^2}{2g} \)
    
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• 2.

  The following graph indicates the system containing 1 mole of gas involving various steps. When it moves from Z to X, the type of undergoing process is: 
  
   

  • Cyclic
    
  • Isothermal
    
  • Isobaric
    
  • Adiabatic
    
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• 3.

  In a photoelectric experiment the incident photons have frequency \( \frac{3}{2} \nu \), where \( \nu \) is the threshold frequency of the material. What is the kinetic energy of the emitted electrons?

  • \( \frac{h \nu}{2} \)
    
  • \( h \nu \)
    
  • \( \frac{3h \nu}{2} \)
    
  • \( 2 h \nu \)
    
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• 4.

  If the sum of two vectors is a unit vector, then the magnitude of their difference is:

  • \( \sqrt{2} \)
    
  • \( \sqrt{3} \)
    
  • \( \frac{1}{\sqrt{3}} \)
    
  • 1
    
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• 5.

  A drop of water of radius 0.0015 mm is falling in air. The coefficient of viscosity of air is \( 1.8 \times 10^5 \, \text{kgm}^{-1} \, \text{s}^{-1} \). If the density of the air is neglected, then what will be the terminal velocity of the drop?

  • \( 2.72 \times 10^{-5} \, \text{m/s} \)
    
  • \( 1.35 \times 10^{-5} \, \text{m/s} \)
    
  • \( 2.72 \times 10^{-4} \, \text{m/s} \)
    
  • \( 3.45 \times 10^{-4} \, \text{m/s} \)
    
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