Which of the following is NOT an SI unit?
Hour
The correct answer is Hour.
The International System of Units (SI) is the modern form of the metric system. It is the world's most widely used system of measurement. There are seven base units in the SI system, from which all other units are derived. These base units are:
- Kilogram (kg): Unit of mass
- Metre (m): Unit of length
- Second (s): Unit of time
- Ampere (A): Unit of electric current
- Kelvin (K): Unit of thermodynamic temperature
- Mole (mol): Unit of amount of substance
- Candela (cd): Unit of luminous intensity
As you can see from the list above, the kilogram, metre, and mole are all SI base units. However, the hour is a unit of time derived from the second (1 hour = 3600 seconds). While commonly used, it's not a base or derived unit within the official SI system. The SI unit for time is the second.
Similar Questions
- The fundamental unit which is common in FPS and MKS systems is ________.
- Which of the following is the unit of length?
- What is the unit for electric charge?
- One Watt = ?
- What is the SI unit of Charge?
Important Questions from Units and Measurements
______ was known as a unit of measurement of land before the British rule, the size of the land varied, in Bengal the British standardized it to about one-third of an acre.
What is the SI unit of current?
What is the SI unit of current?
What is the SI unit of current?
Which of the following quantities is measured using the unit 'quintal'?
