☰
✕

Units and Measurement
Question
Wired Faculty App

What is coherent system of units?

Answer

Coherent system of units are driven by equations and derived from fundamental units. In this system of units, all the derived units can be obtained by multiplying or dividing the fundamental units without introducing the numerical factor other than 1.
The International System of Units (SI) is a coherent system. 

Sponsor Area

Some More Questions From Units and Measurement Chapter

What is the need of measurement?

Define physical quantity.

 

Give four examples of physical quantities.

Define unit.

What are the two main required characteristics of a unit?

Can we use same units for different physical quantities?

Can we use different units to measure same physical quantity?

To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?