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

The binding energy of a nucleon in a nucleus is of the order of a few 

1. eV

2. Ergs

3. MeV

4. Volts

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:

1 eV is 

1. Same as one joule

2. $1.6\times {10}^{-19}J$

3. 1 V

4. $1.6\times {10}^{-19}C$

$1kWh=$

1. $1000W$

2. $36\times {10}^{5}J$

3. $1000J$

4. $3600J$

Universal time is based on :

1. Rotation of the earth on its axis

2. Earth's orbital motion around the Sun

3. Vibrations of cesium atom

4. Oscillations of quartz crystal