A micron is related to centimetre as

(1) $1micron={10}^{-8}cm$

(2) $1micron={10}^{-6}cm$

(3) $1micron={10}^{-5}cm$

(4) $1micron={10}^{-4}cm$

The unit of power is :

(1) Joule

(2) Joule per second only

(3) Joule per second and watt both

(4) Only watt

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

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) $0.6microns$