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. $1.6\times {10}^{-19}C$

Unit of stress is: 
1. \(\frac{\text{N}}{\text{m}}\)
2. \(\text{N-m}\)
3. \(\frac{\text{N}}{\text{m}^2}\)
4. \(\text{N-m}^2\)

Unit of moment of inertia in MKS system 

1. $kg\times c{m}^2$

2. $kg/c{m}^2$

3. $kg\times m^2$

4. $Joule\times m$

$1kWh=$

1. $1000W$

2. $36\times {10}^{5}J$

3. $1000J$

4. $3600J$

Parsec is a unit of :

1. Distance

2. Velocity

3. Time

4. Angle

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

1. eV

2. Ergs

3. MeV

4. Volts

The unit of specific resistance is 

1. Ohm / cm²

2. Ohm / cm

3. Ohm - cm

4. (Ohm - cm)^-1

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