Which of the following quantities has a unit | vedclass

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(C) The correct answer is $C$. $1$. Strain is the ratio of change in dimension to the original dimension,so it is dimensionless and unitless. $2$. Rey

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Angular displacement

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(C) The correct answer is $C$. $1$. Strain is the ratio of change in dimension to the original dimension,so it is dimensionless and unitless. $2$. Reynold's number is a dimensionless quantity used in fluid mechanics. $3$. Angular displacement is defined as the angle subtended by an arc at the center of a circle,given by $	heta = \frac{	ext{arc}}{	ext{radius}}$. It has units of radians $(rad)$ or degrees,but since it is a ratio of two lengths,it is dimensionless. $4$. Poisson's ratio is the ratio of lateral strain to longitudinal strain,making it dimensionless and unitless.

List-$I$	List-$II$
$(A)$ Mass density	$(I)$ $[ML^2T^{-3}]$
$(B)$ Impulse	$(II)$ $[MLT^{-1}]$
$(C)$ Power	$(III)$ $[ML^2T^0]$
$(D)$ Moment of inertia	$(IV)$ $[ML^{-3}T^0]$

Which of the following quantities has a unit but is dimensionless?

Similar Questions

The pair having the same dimensions is

The density of water is $1000 \; kg \; m^{-3}$. The density of water vapour at $100^{\circ} C$ and $1 \; atm$ pressure is $0.6 \; kg \; m^{-3}$. The volume of a molecule multiplied by the total number gives what is called molecular volume. Estimate the volume of a water molecule.

Match List-$I$ with List-$II$.
List-$I$ List-$II$
$(A)$ Mass density $(I)$ $[ML^2T^{-3}]$
$(B)$ Impulse $(II)$ $[MLT^{-1}]$
$(C)$ Power $(III)$ $[ML^2T^0]$
$(D)$ Moment of inertia $(IV)$ $[ML^{-3}T^0]$
Choose the correct answer from the options given below:

State,for each of the following physical quantities,if it is a scalar or a vector: volume,mass,speed,acceleration,density,number of moles,velocity,angular frequency,displacement,angular velocity.

The graph between two quantities $P$ and $Q$ is a straight line passing through the origin when:

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