Question

In S.I. system the unit of length is

• A. Meter
• B. Centimeter
• C. Kilometer
• D. Millimeter

Answer 1

Answer:

A. Meter

7 Fundamental Units:

1. Length (l) – Meter (m)

2. Mass (M) - Kilogram (kg)

3. Time (T) - Second (s)

4. Electric current (I) - Ampere (A)

5. Thermodynamic temperature (Θ) - Kelvin (K)

6. Amount of substance (N) - Mole (mol)

7. Luminous intensity (J) – Candela (cd)

SI Derived Units:

1. Force, Weight - Newton (N)

2. Frequency – Hertz (Hz)

3. Electric charge - Coulomb (C)

4. Electric potential (Voltage) - Volt (V)

5. Inductance - Henry (H)

6. Capacitance – Farad (F)

7. Resistance, Impedance, Reactance - Ohm (Ω)

8. Electrical conductance - Siemens (S)

9. Magnetic flux – Weber (Wb)

10. Magnetic flux density - Tesla (T)  

11. Energy, Work, Heat – Joule (J)

12. Power, Radiant flux – Watt (W)

13. Angle – Radian (rad)    

14. Radioactivity - Becquerel (Bq)

15. Luminous flux – Lumen (lm)

16. momentum (P) - kilogram meter per second (kg⋅ m/s)

17. magnetic field (B) - Tesla

18. heat - joule

19. velocity / വേഗത - m/s

20. pressure / മർദ്ദം - pascal (Pa)