The dimensions of electric potential are:

1. $\left[M{L}^2{T}^{-2}{Q}^{-1}\right]$

2. $\left[ML{T}^{-2}{Q}^{-1}\right]$

3. $\left[M{L}^2{T}^{-1}Q\right]$

4. $\left[M{L}^2{T}^{-2}Q\right]$

The dimension of $\frac{R}{L}$ are

1. T²

2. T

3. T^–1

4. T^–2

The dimensions of shear modulus are

1. MLT^–1

2. $M{L}^2{T}^{-2}$

3. $M{L}^{-1}{T}^{-2}$

4. $ML{T}^{-2}$

Pressure gradient has the same dimensions as that of:

1. Velocity gradient

2. Potential gradient

3. Energy gradient

4. None of these

If force (F), length (L) and time (T) are assumed to be fundamental units, then the dimensional formula of the mass will be

1. $F{L}^{-1}{T}^2$

2. $F{L}^{-1}{T}^{-2}$

3. $F{L}^{-1}{T}^{-1}$

4. $F{L}^2{T}^2$

In the relation, \(y=a \cos (\omega t-k x)\), the dimensional formula for \(k\) will be:
1. \( {\left[M^0 L^{-1} T^{-1}\right]} \)
2. \({\left[M^0 L T^{-1}\right]} \)
3. \( {\left[M^0 L^{-1} T^0\right]} \)
4. \({\left[M^0 L T\right]}\)

"Pascal-Second" has dimension of 

1. Force

2. Energy

3. Pressure

4. Coefficient of viscosity

In a system of units if force (F), acceleration (A) and time (T) are taken as fundamental units then the dimensional formula of energy is 

1. FA²T

2. FAT²

3. F²AT

4. FAT

The ratio of the dimension of Planck's constant and that of moment of inertia is the dimension of

1. Frequency

2. Velocity

3. Angular momentum

4. Time

Which of the following group have different dimensions?

1. Potential difference, EMF, voltage

2. Pressure, stress, young's modulus

3. Heat, energy, work-done

4. Dipole moment, electric flux, electric field