The unit of angular acceleration in the SI system is 

1. $Nk{g}^{-1}$

2. $m{s}^{-2}$

3. $rad{s}^{-2}$

4. $mk{g}^{-1}K$

Joule-second is the unit of :

1. Work

2. Momentum

3. Pressure

4. Angular momentum

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

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:

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

Volt/metre is the unit of 

1. Potential

2. Work

3. Force

4. Electric field intensity

The velocity of a particle depends upon as $v=a+bt+c{t}^2$; if the velocity is in $m/\sec$, the unit of a will be 

1. $m/\sec$

2. $m/{\sec }^2$

3. $m^2/\sec$

4. $m/{\sec }^3$

If the unit of length and force be increased four times, then the unit of energy is 

1. Increased 4 times

2. Increased 8 times

3. Increased 16 times

4. Decreased 16 times