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201. The S.I unit of Moment of force is:
  A.  metre/sec
  B.  m/s2
  C.  Nm
  D.  Ns
     
   
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202. A flying aeroplane has___________________ energy.
  A.  Motion Energy
  B.  Potential
  C.  Kinetic both
  D.  Both B & C
     
   
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203. if the momentum is doubled, kinetic energy becomes:
  A.  four times
  B.  two times
  C.  half times
  D.  eight times
     
   
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204. The value of universal gravitational constant (G) is:
  A.  5.67 × 10−11 Nm2/ Kg2
  B.  6.67 × 10−11 Nm2/ Kg2
  C.  6.67 × 10−15 Nm2/ Kg2
  D.  5.67 × 10−15 Nm2/ Kg2
     
   
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205. If the cord of the lift is broken, it falls freely, the weight of a body becomes ________.
  A.  Half
  B.  Double
  C.  same as original
  D.  zero
     
   
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206. The orbital speed of a satellite revolving near the surface of earth is
  A.  7.9 km/sec
  B.  5.9 km/sec
  C.  9.9 km/sec
  D.  7.2 km/sec
     
   
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207. The period of revolution of satellite revolving near the surface of the earth is:
  A.  1 hour 50 minutes
  B.  2 hour 24 minutes
  C.  1 hour 24 minutes
  D.  2 hour 20 minutes
     
   
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208. Which velocity is called second cosmic velocity:
  A.  Terminal Velocity
  B.  Escape velocity
  C.  Instant Velocity
  D.  None of them
     
   
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209. For Earth, escape velocity is ________________ while for moon, escape velocity is _____________.
  A.  10.2 km/s, 2.4 km/s
  B.  11.2 km/s, 5.4 km/s
  C.  12.7 km/s, 1.4 km/s
  D.  11.2 km/s, 2.4 km/s
     
   
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210. Escape velocity is _____________ times the orbital velocity.
  A.  2√2
  B.  √3
  C.  √2
  D.  2√3
     
   
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