Physics
How many units are fundamental and supplementary?
- 2 fundamental, 7 supplementary
- 3 fundamental, 6 supplementary
- 7 fundamental, 2 supplementary
- 4 fundamental, 5 supplementary
Answer
7 fundamental, 2 supplementary
Reason — Fundamental and supplementary units are as follows :
| Fundamental Units | Unit | Symbol |
|---|---|---|
| Length | metre | m |
| Mass | kilogram | kg |
| Time | second | s |
| Temperature | kelvin | K |
| Luminous intensity | candela | cd |
| Electric current | ampere | A |
| Amount of substance | mole | mol |
| Supplementary Units | Unit | Symbol |
|---|---|---|
| Angle | radian | rd |
| Solid angle | steradian | st-rd |
Related Questions
The condition(s) essential for a unit to be accepted internationally :
- The unit should be of convenient size and without any ambiguity.
- The unit should be reproducible.
- The value of the unit should not change with space and time.
- All of the above.
In mechanics, the three fundamental quantities are:
- Length, mass, velocity
- Mass, time, density
- Mass, time, pressure
- Length, mass, time
The fundamental unit is —
- newton
- pascal
- hertz
- second
Which of the following unit is not a fundamental unit:
- Metre
- Litre
- Second
- Kilogram