A suitable unit for gravitational constant is:

(1) $kg\text{-\hspace{0.17em}}m{\sec }^{-1}$

(2) $N{m}^{-1}\sec$

(3) $N{m}^{2}k{g}^{-2}$

(4) $kgm{\sec }^{-1}$

SI unit of pressure is

(1) Pascal

(2) $Dynes/c{m}^2$

(3) cm of Hg

(4) Atmosphere

The unit of angular acceleration in the SI system is 

(1) $Nk{g}^{-1}$

(2) $m{s}^{-2}$

(3) $rad{s}^{-2}$

(4) $mk{g}^{-1}K$

The unit of Stefan's constant $\sigma$ is : [This question includes concepts from Thermal Properties of Matter chapter]

(1) $W{m}^{-2}{K}^{-1}$

(2) $W{m}^2{K}^{-4}$

(3) $W{m}^{-2}{K}^{-4}$

(4) $W{m}^{-2}{K}^4$

In $S=a+bt+c{t}^2$, S is measured in metres and t in seconds. The unit of c will be:

Joule-second is the unit of :

(1) Work

(2) Momentum

(3) Pressure

(4) Angular momentum

Unit of energy in SI system is 

(1) Erg

(2) Calorie

(3) Joule

(4) Electron volt

A cube has a numerically equal volume and surface area. The volume of such a cube is :

1. 216 units

2. 1000 units

3. 2000 units

4. 3000 units

Wavelength of ray of light is $0.00006m$. It is equal to 

(1) $6microns$

(2) $60microns$

(3) $600microns$

(4) $0.6microns$

Electron volt is a unit of 

(1) Charge

(2) Potential difference

(3) Momentum

(4) Energy