Question

Match the columns.

SI unit	Component
1. Amount of substance	a. ampere
2. Electric current	b. candela
3. Luminous intensity	c. mole
4. Plane angle	d. radian

1. 1 - c, 2 - b, 3 - d, 4 - a
2. 1 - c, 2 - b, 3 - a, 4 - d
3. 1 - c, 2 - a, 3 - b, 4 - d
4. 1 - b, 2 - c, 3 - a, 4 - d

Answer 1

Correct Answer - Option 3 : 1 - c, 2 - a, 3 - b, 4 - d

Concept:

Fundamental units: 

• The fundamental units are those units that are derived from fundamental quantities, as they can describe by the(SI unit) International unit.
• They are basically not dependent on any other units, and all other units are created and derived from them. 
• These are 7 fundamental units accepted internationally for scientific measurements. 

7 FUNDAMENTAL UNITS
Physical Quantity	SI unit	Symbol
Length	meter	m
Mass	Kilogram	kg
Time	second	s
Electric current	ampere	A
Temperature	Kelvin	K
Luminous intensity	Candela	Cd
Amount of substance	Mole	mol

 

Explanation:

So, from the above table, it is clear that:

SI unit	Component
1. Amount of substance	c. mole
2. Electric current	a. ampere
3. Luminous intensity	b. candela
4. Plane angle	d. radian

• Hertz is the unit of Frequency.
• Weber is the unit of magnetic Field Intensity. 
• Curie is the unit of radioactivity. 

Luminous Intensity: It is the amount of visible light passing through the solid angle.