In \(S= a+bt+ct^2,~S\) is measured in metres and \(t\) in seconds. The unit of \(c\) will be:
1. | none | 2. | \(\text{m}\) |
3. | \(\text{ms}^{-1}\) | 4. | \(\text{ms}^{-2}\) |
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 . It is equal to
1.
2.
3.
4.
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:
1. | length and mass | 2. | mass and time |
3. | length, mass, and time | 4. | none of the above |
Unit of power is:
1. Kilowatt
2. Kilowatt-hour
3. Dyne
4. Joule
The density of wood is 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