The dimensional formula of the coefficient of thermal conductivity is :
1.
2.
3.
4.
If L,Q,R represent inductance, charge and resistance respectively, the units of
[This question includes concepts from 12th syllabus]
1. will be those of current
2. will be those of energy
3. will be those of current
4. will be those of power
The quantity has dimensional formula same as [This question includes concepts from 12th syllabus]
1.
2.
3.
4. Power
A light-year is a unit of:
1. | Time | 2. | Mass |
3. | Distance | 4. | Energy |
The magnitude of any physical quantity:
1. | depends on the method of measurement. |
2. | does not depend on the method of measurement. |
3. | is more in the SI system than in the CGS system. |
4. | is directly proportional to the fundamental units of mass, length and time. |
Which of the following is not equal to a watt?
1. Joule/second
2. Ampere\(\times\) volt
3. ( Ampere)2\(\times\) ohm
4. Ampere/volt
Newton–second is the unit of
(1) Velocity
(2) Angular momentum
(3) Momentum
(4) Energy
Which of the following is not represented in correct unit
(1)
(2) Surface tension =
(3) Energy
(4) Pressure
One second is equal to :
(1) 1650763.73 time periods of clock
(2) 652189.63 time periods of clock
(3) 1650763.73 time periods of clock
(4) 9192631770 time periods of clock