If Surface tension   ( S ) , Moment of Inertia ( I ) and Planck's constant ( h ) , were to be taken…

If Surface tension (S), Moment of Inertia (I) and Planck's constant (h), were to be taken as the fundamental units, the dimensional formula for linear momentum would be:
  1. S1/2I1/2h0
  2. S1/2I3/2h-1
  3. S3/2I1/2h0
  4. S1/2I1/2h-1

Solution

PSaIbhc
[MLT-1]=MT-2aML2bML2T-1C
MLT-1=[Ma+b+cL2b+2cT-2a-c]
From comparing the power on both side
a+b+c=1
2b+2c=1
-2a-c=-1
From the above three equations we will get
a=12, b=12& c=0
PS12I12h0

Asked in: JEE Main 2019 (08 Apr Shift 2)

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