Fundamental and Derived Units

Which of the following pairs of physical quantities have the same dimension?

Why length, mass and time are chosen as base quantities in mechanics?

Write the fundamental unit of amount of substance.

Write the fundamental unit of electric current.

Select the derived unit from the options.

Select the fundamental unit from the options.

Select the derived quantity from the options.

Select the fundamental quantity from the options.

According to metric system, how many fundamental units are there?

Name the SI unit of solid angle.

Units which are expressed in terms of fundamental units or those units which are dependent on fundamental units are called _____ (standard / derived) units.

Solid-angle:

Quantities other than base quantities are called as

Among the following statements, which one is wrong ?

Which of the following options correctly represents the unit of potential energy?

Identify the option which is not a base unit.

Among the given dimensionless physical quantities, which quantity have a unit? 

Find the dimensional formula of electric induction field $\overrightarrow{D}$ using dimensional analysis.

$1$ light year is equal to

Light year is the unit of