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Question

If the dimensions of a physical quantity are given by [La Mb Tc], then the physical quantity will be
  1. force, if a=1, b=0, c=2
  2. pressure, if a=1, b=1, c=2
  3. velocity, if a=1, b=0, c=1
  4. acceleration, if a=1, b=1, c=2


Solution

The correct option is B pressure, if a=1, b=1, c=2
Dimensions of force =[L1M1T2]

Pressure=ForceArea

Dimensions of pressure =[L1M1T2]

Dimesions of velocity =[L1M0T1]

Dimesions of acceleration =[L1M0T2]

Only option (b) is correct

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