First slide

Dimensions of physical quantities

Question

In the relation $\frac{dy}{dt} = 2 ωsin (ωt + ϕ_{0})$ the dimensional formula for $ωt + ϕ_{0}$ is

Moderate

A

MLT
B

MLT⁰
C

ML⁰T⁰
D

M⁰L⁰T⁰

Solution

Here $(ωt + ϕ_{0})$ is dimensionless because it is an argument of a trigonometric function.

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