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. $m/{\sec }^3$

One million electron volt $\left(1MeV\right)$ is equal to 

1. ${10}^{5}eV$

2. ${10}^{6}eV$

3. ${10}^{4}eV$

4. ${10}^{7}eV$

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

In which of the following systems of the unit, Weber is the unit of magnetic flux?

1. CGS

2. MKS

3. SI

4. None of these

$Kilowatt-hour$ is a unit of 

1. Electrical charge

2. Energy

3. Power

4. Force

Tesla is a unit for measuring 

1. Magnetic moment

2. Magnetic induction & Intensity

3. Magnetic field lines

4. Magnetic pole strength

Ampere - hour is a unit of 

1. Quantity of electricity

2. Strength of electric current

3. Power

4. Energy

Which of the following represents a volt :

1. Joule/second

2. Watt/Ampere

3. Watt/Coulomb

4. Coulomb/Joule

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

1. Force

2. Momentum

3. Power

4. Acceleration