Which relation is wrong?

1. 1 Calorie = 4.18 Joules

2. $1 \AA ={10}^{-10}m$

3. $1MeV=1.6\times {10}^{-13}Joules$

4. $1Newton={10}^{-5}Dynes$

If $x=at+b{t}^2$, where x is the distance travelled by the body in kilometres while t is the time in seconds, then the units of b are

1. $km\text{}/\text{}s$

2. $km\text{}-\text{}s$

3. $km\text{}/\text{}{s}^2$

4. $km\text{}-\text{}{s}^2$

Given the equation $\left(P+\frac{a}{V^2}\right)(V-b)=\text {constant}$. The units of $a$ will be: (where $P$ is pressure and $V$ is volume)
1. $\text{dyne} \times \text{cm}^5$
2. $\text{dyne} \times \text{cm}^4$
3. $\text{dyne} / \text{cm}^3$
4. $\text{dyne} / \text{cm}^2$

Which of the following quantity is expressed as force per unit area

1. Work

2. Pressure

3. Volume

4. Area

Match the following:

Codes:

Which is not a unit of electric field

1. $N{C}^{-1}$

2. $V{m}^{-1}$

3. $J{C}^{-1}$

4. $J{C}^{-1}{m}^{-1}$

'Torr' is the unit of

1. Pressure

2. Volume

3. Density

4. Flux

Which of the following is a derived unit

1. Unit of mass

2. Unit of length

3. Unit of time

4. Unit of volume

Dyne/cm² is not a unit of :

1. Pressure

2. Stress

3. Strain

4. Young's modulus