Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice

If Surface tension (S), Moment of Inertia(I)and Planck's constant(h),were to be taken as the fundamental units, the dimensional formula units, the dimensional formula for linear momentum would be:

Options:

Answer:
A
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

Stream:NTA_ABHYASSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous
2mℹ️ Source: PYQ_2020

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