Physics - Unit & Dimension Question with Solution | TestHub
PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice
Energy, angular momentumand universal gravitational constantare chosen as fundamental quantities. The dimensions of universal gravitational constant in the dimensional formula of Planck's constantis
Options:
Answer:
A
Solution:
h = GxLyEz
[M1L2T-1] = [M-1L3T-2]x [M1L2T-1]y [M1L2T-2]z
Comparing the power, we get
1 = - x + y + z ... (i)
2 = 3x + 2y + 2z ... (ii)
-1 = - 2x - y - 2z ... (iii)
On solving Eq. (i), (ii) and (iii), we get x = 0
Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous
⏱ 2mℹ️ Source: PYQ_2020
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