Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minQB

PhysicsEasysingle choice

In the expression $y = a cos (ω t + θ), y$ is displacement and $t$ is time. The dimensions of $a, ω$ and $θ$ are, respectively,

Answer:

Solution:

Same logic as the source: $[a] = [y] = [L]; ω t$
dimensionless gives $[ω] = [T^{- 1}]$ ;
the angle $θ$ is dimensionless.

Stream:JEESubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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