Class X

Quantity which is not a physical quantity is
  1. Mass
  2. Stress
  3. Length
  4. Velocity
SI unit of conductivity of material is
  1. Ω m
  2. Ω
  3. Ω-1m
  4. Ω-1m-1
Operation of drawing representative line between two vectors in such a way that tail of one vector coincides with head of other vector is called
  1. Vector addition
  2. Vector subtraction
  3. Vector division
  4. Vector multiplication
 According to system international, unit of torque is
  1. Newton meter
  2. Newton per meter
  3. Newton per meter square
  4. Per newton meter
Geo-stationary satellites are useful examples of
  1. Satellite motion
  2. Satellite motion
  3. Satellite gravity
  4. Satellites
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