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.
(N/A) scalar quantity is defined by its magnitude only,without any associated direction. $A$ vector quantity is defined by both its magnitude and an associated direction.
$1$. Scalar quantities: Volume,mass,speed,density,number of moles,and angular frequency.
$2$. Vector quantities: Acceleration,velocity,displacement,and angular velocity.
$1$. Scalar quantities: Volume,mass,speed,density,number of moles,and angular frequency.
$2$. Vector quantities: Acceleration,velocity,displacement,and angular velocity.
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Similar Questions
In an electromagnetic system,a quantity defined as the ratio of electric dipole moment and magnetic dipole moment has dimensions of $[M^P L^Q T^R A^S]$. The values of $P$ and $Q$ are:
Consider the following statements:
$(A)$ Any physical quantity can have more than one unit.
$(B)$ Any physical quantity has only one dimensional formula.
$(C)$ More than one physical quantity may have the same dimension.
$(D)$ We can add and subtract only those expressions that have the same dimension.
The number of correct statements is:
$(A)$ Any physical quantity can have more than one unit.
$(B)$ Any physical quantity has only one dimensional formula.
$(C)$ More than one physical quantity may have the same dimension.
$(D)$ We can add and subtract only those expressions that have the same dimension.
The number of correct statements is:
Medium
View SolutionThe unit of length convenient on the atomic scale is known as an $\mathring{A}$ and is denoted by $\mathring{A}: 1 \mathring{A} = 10^{-10} \, m$. The size of a hydrogen atom is about $0.5 \mathring{A}$. What is the total atomic volume in $m^{3}$ of a mole of hydrogen atoms?
Medium
View SolutionMatch List-$I$ with List-$II$.
List-$I$ List-$II$ $(a)$ Torque $(i)$ ${MLT}^{-1}$ $(b)$ Impulse $(ii)$ ${MT}^{-2}$ $(c)$ Tension $(iii)$ ${ML}^{2} {T}^{-2}$ $(d)$ Surface Tension $(iv)$ ${ML} {T}^{-2}$
Choose the most appropriate answer from the options given below:
| List-$I$ | List-$II$ |
| $(a)$ Torque | $(i)$ ${MLT}^{-1}$ |
| $(b)$ Impulse | $(ii)$ ${MT}^{-2}$ |
| $(c)$ Tension | $(iii)$ ${ML}^{2} {T}^{-2}$ |
| $(d)$ Surface Tension | $(iv)$ ${ML} {T}^{-2}$ |
Choose the most appropriate answer from the options given below:
Units for constants in Column-$I$ and $SI$ unit is given in Column-$II$. Match the followings:
Column-$I$ Column-$II$ $(a)$ Wien's constant $(i)$ $W m^{-2} K^{-4}$ $(b)$ Stefan-Boltzmann's constant $(ii)$ $W m^{-1} K^{4}$ $(iii)$ $m K$
| Column-$I$ | Column-$II$ |
| $(a)$ Wien's constant | $(i)$ $W m^{-2} K^{-4}$ |
| $(b)$ Stefan-Boltzmann's constant | $(ii)$ $W m^{-1} K^{4}$ |
| $(iii)$ $m K$ |
Easy
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