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

Temperature can be expressed as a derived quantity in terms of any of the following:

Unit of power is:

(1) Kilowatt

(2) Kilowatt-hour

(3) Dyne

(4) Joule