The velocity of a particle depends upon as $v=a+bt+c{t}^2$; if the velocity is in $m/\sec$, the unit of a will be 

1. $m/\sec$

2. $m/{\sec }^2$

3. $m^2/\sec$

4. $m/{\sec }^3$

$Erg-m^{-1}$ can be the unit of measure for 

1. Force

2. Momentum

3. Power

4. Acceleration

Which of the following represents a volt :

1. Joule/second

2. Watt/Ampere

3. Watt/Coulomb

4. Coulomb/Joule

If the unit of length and force be increased four times, then the unit of energy is 

1. Increased 4 times

2. Increased 8 times

3. Increased 16 times

4. Decreased 16 times

Ampere - hour is a unit of 

1. Quantity of electricity

2. Strength of electric current

3. Power

4. Energy

The unit of specific resistance is 

1. Ohm / cm²

2. Ohm / cm

3. Ohm - cm

4. (Ohm - cm)^-1

Parsec is a unit of :

1. Distance

2. Velocity

3. Time

4. Angle

If \(u_1\) and \(u_2\) are the units selected in two systems of measurement and \(n_1\) and \(n_2\) are their numerical values, then:

Curie is a unit of 

1. Energy of $\gamma$-rays

2. Half life

3. Radioactivity

4. Intensity of $\gamma$-rays

The unit of $e.m.f.$ is 

1. Joule

2. Joule-Coulomb

3. Volt–Coulomb

4. Joule/Coulomb