The ratio of the dimension of Planck's constant and that of moment of inertia is the dimension of
Frequency
Velocity
Angular momentum
Time
Given below are two statements :
Statement $(I)$ : Dimensions of specific heat is $\left[\mathrm{L}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-1}\right]$
Statement $(II)$ : Dimensions of gas constant is $\left[\mathrm{ML}^2 \mathrm{~T}^{-1} \mathrm{~K}^{-1}\right]$
Which pair do not have equal dimensions?
Write principle of Homogeneity of dimension.
Match 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 | $(iv)$ ${MI} {T}^{-2}$ |
Choose the most appropriate answer from the option given below :
A famous relation in physics relates 'moving mass' $m$ to the 'rest mass' $m_{0}$ of a particle in terms of its speed $v$ and the speed of light, $c .$ (This relation first arose as a consequence of special relativity due to Albert Einstein). A boy recalls the relation almost correctly but forgets where to put the constant $c$. He writes:
$m=\frac{m_{0}}{\left(1-v^{2}\right)^{1 / 2}}$
Guess where to put the missing $c$