Which of the following quantity is expressed as force per unit area
1. Work
2. Pressure
3. Volume
4. Area
Match the following:
List-I |
List-II |
||
(a) |
Distance between earth and stars |
1. |
Microns |
(b) |
Inter-atomic distance in a solid |
2. |
Angstroms |
(c) |
Size of the nucleus |
3. |
Light years |
(d) |
Wavelength of infrared laser |
4. |
Fermi |
5. |
Kilometres |
Codes:
a |
b |
c |
d |
|
1. |
5 |
4 |
2 |
1 |
2. |
3 |
2 |
4 |
1 |
3. |
5 |
2 |
4 |
3 |
4. |
3 |
4 |
1 |
2 |
Which is not a unit of electric field
1. NC−1NC−1
2. Vm−1Vm−1
3. JC−1JC−1
4. JC−1m−1JC−1m−1
'Torr' is the unit of
1. Pressure
2. Volume
3. Density
4. Flux
Which of the following is a derived unit
1. Unit of mass
2. Unit of length
3. Unit of time
4. Unit of volume
Dyne/cm2 is not a unit of :
1. Pressure
2. Stress
3. Strain
4. Young's modulus
The units of angular momentum are
1. kg−m2/s2kg−m2/s2
2. Joule−sJoule−s
3. Joule/sJoule/s
4. kg−m−s2
Which of the following is not the unit of energy
1. Calorie
2. Joule
3. Electron volt
4. Watt
Which of the following is not a unit of time
1. Leap year
2. Micro second
3. Lunar month
4. Light year
The S.I. unit of gravitational potential is
1. J
2. J-kg−1
3. J-kg
4. J-kg−2