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

The density of wood is $0.5gm/cc$ in the CGS system of units. The corresponding value in MKS units is :

(1) 500

(2) 5

(3) 0.5

(4) 5000

Which is the correct unit for measuring nuclear radii

(1) Micron

(2) Millimetre

(3) Angstrom

(4) Fermi

Mach number is equal to one when velocity of object is equal to:

(1) Velocity of light

(2) Velocity of sound $(332m/\sec )$

(3) $1km/\sec$

(4) $1m/\sec$

Volt/metre is the unit of 

(1) Potential

(2) Work

(3) Force

(4) Electric field intensity