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 magnetic moment is

(1) $Ampere\text{}-\text{}metr{e}^2$

(2) $Ampere\text{}-\text{}metre$

(3) $Weber\text{}-\text{}metr{e}^2$

(4) $Weber\text{}/\text{}metre$

Curie is a unit of 

1. Energy of $\gamma$-rays

2. Half life

3. Radioactivity

4. Intensity of $\gamma$-rays

Hertz is the unit of

(1) Frequency

(2) Force

(3) Electric charge

(4) Magnetic flux

One pico Farad is equal to

(1) ${10}^{-24}F$

(2) ${10}^{-18}F$

(3) ${10}^{-12}F$

(4) ${10}^{-6}F$

In SI, Henry is the unit of 

(1) Self inductance

(2) Mutual inductance

(3) (1) and (2) both

(4) None of the above

The unit of $e.m.f.$ is 

(1) Joule

(2) Joule-Coulomb

(3) Volt–Coulomb

(4) Joule/Coulomb

Unit of self inductance is [This question includes concepts from 12th syllabus]

(1) $\frac{Newton-\sec ond}{Coulomb\times Ampere}$

(2) $\frac{Joule/Coulomb\times Second}{Ampere}$

(3) $\frac{Volt\times metre}{Coulomb}$

(4) $\frac{Newton\times metre}{Ampere}$

To determine Young's modulus of a wire, the formula is $Y=\frac{F}{A}\times \frac{L}{\Delta L};$ where L = length, A = area of cross-section of the wire, $\Delta L=$change in length of the wire when stretched with a force F. The conversion factor to change it from CGS to MKS system is

(1) 1

(2) 10

(3) 0.1

(4) 0.01

Young's modulus of a material has the same units as

(1) Pressure

(2) Strain

(3) Compressibility

(4) Force