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
Which of the following pairs of physical quantities have the same dimensions,where one is a vector and the other is a scalar?
Medium
View SolutionWhich of the following does not have the same unit as the others?
Easy
View SolutionState whether the following statements are true or false:
$(a)$ $A$ physical quantity can have units but still be dimensionless.
$(b)$ Impulse and the gradient of energy have the same units.
$(c)$ The absolute error in every measurement is equal to the least count of the measuring instrument.
$(a)$ $A$ physical quantity can have units but still be dimensionless.
$(b)$ Impulse and the gradient of energy have the same units.
$(c)$ The absolute error in every measurement is equal to the least count of the measuring instrument.
Medium
View SolutionMatch List $I$ with List $II$:
List $I$ List $II$ $A$. Torque $I$. $[M^1 L^1 T^{-2} A^{-2}]$ $B$. Magnetic field $II$. $[L^2 A^1]$ $C$. Magnetic moment $III$. $[M^1 T^{-2} A^{-1}]$ $D$. Permeability of free space $IV$. $[M^1 L^2 T^{-2}]$
Choose the correct answer from the options given below:
| List $I$ | List $II$ |
| $A$. Torque | $I$. $[M^1 L^1 T^{-2} A^{-2}]$ |
| $B$. Magnetic field | $II$. $[L^2 A^1]$ |
| $C$. Magnetic moment | $III$. $[M^1 T^{-2} A^{-1}]$ |
| $D$. Permeability of free space | $IV$. $[M^1 L^2 T^{-2}]$ |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2024
View SolutionExpress:
$(a)$ The energy required to break one bond in $DNA$ in $eV$.
$(b)$ The kinetic energy of an air molecule $(10^{-21} \; J)$ in $eV$.
$(c)$ The daily intake of a human adult in kilocalories.
$(a)$ The energy required to break one bond in $DNA$ in $eV$.
$(b)$ The kinetic energy of an air molecule $(10^{-21} \; J)$ in $eV$.
$(c)$ The daily intake of a human adult in kilocalories.
Medium
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