Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice

Ifprepresents radiation pressure,Crepresents the speed of light andqrepresents radiation energy striking a unit area per second, then non-zero integersa,bandcare such thatpaqbCcis dimensionless, then

Options:

Answer:
B
Solution:

Here,M0L0T0=M L-1T-2aMT-3bLT-1c

OrM0L0T0=[Ma+bL-a+cT-2a-3b-c]

Comparing powers ofM,LandT,we get

a+b=0,-a+c=0,-2a-3b=0

Solvinga=1,b=-1,c=1

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

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