LT-2 is the dimension of which of the following quantities? 

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PGCIL DT Electrical 12 March 2022 (NR II) Official Paper
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  1. Power
  2. Acceleration 
  3. Momentum 
  4. Density

Answer (Detailed Solution Below)

Option 2 : Acceleration 
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Detailed Solution

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The correct answer is option 2):(Acceleration)

Concept:

Acceleration:

  • Acceleration is the rate of change of the velocity of an object with respect to time.
  • Velocity is given by rate of change of distance with respect to Time
  • Velocity = \(Distance \over Time\)
  • The dimension of Velocity is LT-1 
  • Acceleration  = \(Velocity \over Time\)
  • The dimension of accelartation is LT-2 

Additional Information

  • The dimensional formula of power P is [ML2T-3]. 
  • Momentum is dimensionally represented as [M1 L1 T-1].
  • Density is dimensionally represented as [M1 L-3 T0].
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