1. How many fundametal units are there in SI unit ?
- Five
- Seven
- Nine
- Ten
Answer: Option(B).
Memory: There are total 7 fundamental units in SI system, eg. 1. Meter 2. Kilogram 2. Second 4. Ampere 5. Kelvin 6. Candela 7. Mole.
2. How many fundamental units are there in CGS system ?
- Two
- Three
- Five
- Seven
Answer: Option(B).
Memory: There are total 2 fundamental units in CGS system. Which are, 1. Length 2. Mass 2. Time .
3. Which one among the following is not a fundamental unit in SI system ?
- Candela
- Mole
- Celcius
- Kelvin
Answer: Option(C).
Memory: Except ‘Celcius’ all others units are fundamental in SI system .
4. How many system of units are found in practice ?
- Three
- Two
- Seven
- Four
Answer: Option(D).
Memory: There are total four system of units are found in practice, whic are, 1. MKS 2. CGS 2. FPS and 4. SI .
5. The unit of energy in CGS system is ?
- Ohm
- Joule
- Erg
- Candela
Answer: Option(C).
Memory: No memory available.
6. SI unit of heat capacity is ?
- J kg-1
- J k-1
- J kg-1 k -1
- N m-2
Answer: Option(B).
Memory: No memory available.
7. The quantities which are determine with the help of a fundamental or primary quantity is called ?
- Vector quantity
- Scalar quantity
- Primary quantity
- Derived quantity
Answer: Option(D).
Memory: No memory available.
8. Which one among the following is a scalar quantity ?
- Length
- Acceleration
- Velocity
- Weight
Answer: Option(A).
Memory: No memory available.
9. Which one of the following statements is not correct ?
- Velocity of a train is 60km/hr
- Speed of a train is 60km/hr
- Velocity of a train is 60km/hr (Eastward)
- None of the above
Answer: Option(A).
Memory: While we define the velocity of an object, we must be denote the direction of the velocity. As velocity depends on direction .
10. Which one of the following quantity’s unit is same in all system ?
- Force
- Temperature
- Length
- Time
Answer: Option(D).
Memory: No memory available.