Which of the following is the smallest unit?

1. Millimetre

2. Angstrom

3. Fermi

4. Metre

Which one of the following pairs of quantities and their units is a proper match?

1. Electric field – $Coulomb/m$

2. Magnetic flux – $Weber$

3. Power – Farad

4. Capacitance – Henry

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

1. Pressure

2. Strain

3. Compressibility

4. Force

[This question includes concepts from 12th syllabus] 

Codes:                                                                                        

1. $I-A,II-F,III-E,IV-D$

2. $I-C,II-F,III-A,IV-B$

3. $I-C,II-F,III-A,IV-E$

4. $I-B,II-F,III-A,IV-C$

The units of modulus of rigidity are

1. $N\text{}-\text{}m$

2. $N\text{}/\text{}m$

3. $N\text{}-\text{}{m}^2$

4. $N\text{}/\text{}{m}^2$

The unit of absolute permittivity is

1. $Fm$ (Farad-metre)

2. $F{m}^{-1}$ (Farad/metre)

3. $F{m}^{-2}$ (Farad/$metr{e}^2$)

4. F (Farad)

Which relation is wrong?

1. 1 Calorie = 4.18 Joules

2. $1<mspace\; width="1em"></mspace>\AA ={10}^{-10}m$

3. $1MeV=1.6\times {10}^{-13}Joules$

4. $1Newton={10}^{-5}Dynes$

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

One yard in SI units is equal :

1. 1.9144 metre

2. 0.9144 metre

3. 0.09144 kilometre

4. 1.0936 kilometre