A unitless quantity

Important Questions on Physical World and Measurement

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Conceptual Questions)>Q 53

The equation of a wave is given by, $Y=A\sin \omega \left(\frac{x}{v}-k\right),$ where $\omega$ is the angular velocity, $x$ is the displacement and $v$ is the linear velocity. The dimensions of $k$ is

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Conceptual Questions)>Q 54

Which of the following pairs do not match :-

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Conceptual Questions)>Q 55

Ton is the unit of

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Conceptual Questions)>Q 1

L, C and R represent physical quantifies inductance, capacitance and resistance respectively. The combination representing dimension of frequency is :  

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Previous Year Questions)>Q 1

The time dependence of a physical quantity $P$ is given by $P=P_0\exp \left(-\alpha t^2\right)$, where $\mathrm{\alpha }$ is a constant and $t$ is time. The constant $\mathrm{\alpha }$-

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Previous Year Questions)>Q 2

Dimensional formula of angular velocity is-

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Previous Year Questions)>Q 3

The equation of state of some gases can be expressed as $\left(P+\frac{a}{V^2}\right)\left(V-b\right)=RT$, where $P$ is the pressure, $V$ is the volume, $T$ is the absolute temperature and $a, b$ and $R$ are constants. The dimensions of ’$a$’ are:-

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Beta Question Bank for Medical: Physics>Chapter 3 - Physical World and Measurement>Exercise (Previous Year Questions)>Q 4

A force $F$ is given by $F=at+b{t}^2$, where $t$ is time. The dimensions of $a$ and $b$ are