AP EAPCET Question Paper 2021 (Available): Check Previous Year Question Paper with Solution PDF (2023-2013)

AP EAPCET 2021 Questions

• 1.

  Two objects of masses 5 kg and 10 kg are placed 2 meters apart. What is the gravitational force between them?
  (Use \(G = 6.67 \times 10^{-11}\, \mathrm{Nm^2/kg^2}\))

  • \(1.67 \times 10^{-10}\) N
    
  • \(8.34 \times 10^{-11}\) N
    
  • \(3.34 \times 10^{-10}\) N
    
  • \(5.00 \times 10^{-N}\)
    
  View Solution

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• 2.

  The height at which the weight of a person becomes 25% of his weight on the surface of the earth is: (R$_E$ is the radius of the earth)
  

  • $\frac{R_E}{2}$
    
  • $\frac{R_E}{4}$
    
  • $\frac{R_E}{8}$
    
  • $2R_E$
    
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• 3.

  A satellite is launched into a circular orbit of radius R around the earth. A second satellite is launched into another circular orbit of radius 1.01 R around the earth. The period of revolution of the second satellite is larger than that of the first one by a percent of (approximately)

  • 0.5
  • 1.0
  • 1.5
  • 3.0
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• 4.

  If an object of mass 1 kg is taken to a height which is equal to three times the radius of the earth, then the change in its potential energy is
  (Radius of the earth \( = 6400 \, \text{km} \), acceleration due to gravity \( g = 10 \, \text{m/s}^2 \))

  • \( 48 \times 10^6 \, \text{J} \)
  • \( 24 \times 10^6 \, \text{J} \)
  • \( 36 \times 10^6 \, \text{J} \)
  • \( 12 \times 10^6 \, \text{J} \)
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• 5.

  Two solid spheres each of radius \( R \) made of same material are placed in contact with each other. If the gravitational force acting between them is \( F \), then

  • \( F \propto R^4 \)
    
  • \( F \propto R^3 \)
    
  • \( F \propto R^2 \)
    
  • \( F \propto R \)
    
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